CN203441809U - Acid proof pump machine sealing device - Google Patents
Acid proof pump machine sealing device Download PDFInfo
- Publication number
- CN203441809U CN203441809U CN201320559082.4U CN201320559082U CN203441809U CN 203441809 U CN203441809 U CN 203441809U CN 201320559082 U CN201320559082 U CN 201320559082U CN 203441809 U CN203441809 U CN 203441809U
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- CN
- China
- Prior art keywords
- ring
- pump
- pump shaft
- rotating ring
- sealing
- 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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- Structures Of Non-Positive Displacement Pumps (AREA)
- Mechanical Sealing (AREA)
Abstract
The utility model provides an acid proof pump machine sealing device which comprises a pump shaft, a pump body and a sealing pressing cover. The pump shaft is connected with the pump body. A spring base, a moving ring and a static ring are arranged on the pump shaft at the connection portion. The moving ring is placed on the outer side of the spring base. The static ring is placed on the outer side of the moving ring. A spring is arranged in a cavity formed by the spring base, the moving ring and the pump shaft. The sealing pressing cover is arranged on the moving ring and the static ring in a sleeved mode and is fixedly arranged on the outer side of the pump body. O-shaped sealing rings are arranged between an inner hole of the sealing pressing cover and the moving rings and the static rings respectively. An O-shaped sealing ring is formed between the inner hole of the moving ring and the pump shaft. The static ring and the sealing pressing cover are connected through a stopping pin. The acid proof pump machine sealing device has the advantages of being good in sealing effect and long in service life.
Description
technical field
The utility model relates to a kind of acid-proof pump machine seal apparatus.
background technique
Chemical industry equipment should meet anticorrosion, antifouling, a series of technical requirementss and the environmental requirements such as drainage leakage, under acid solution condition, liquid generally has corrosivity, traditional water seal type vacuum pump is also inapplicable, therefore, need to use acid-proof pump just can carry out liquid conveying, acid-proof pump adopts acidproof mostly, corrosion resistant material is as the section bar of pump, general non-metallic material (the engineering plastics that adopt, stupalith etc.) as the flow passage components material of pump, there is stronger decay resistance, and it is high to have mechanical strength, be difficult for aging, without advantages such as toxin decomposition, at chemical industry, metallurgical, electric power, papermaking, food, pharmacy, the industrial department application such as synthetic fiber are very extensive.
Traditional acid-proof pump adopts O-ring seals sealing, and rotating ring material adopts comparatively common metal or nonmetallic material, this kind of sealing means can play sealing effect in a short time, the long-term words of using, rotating ring and O-ring seals easily make seal failure because of mechanical wear, cause fed sheet of a media to leak, pump group transfer efficiency reduces, and impact is produced and befouling environment.Therefore, the sealing effect of acid-proof pump how, is directly connected to the usability of pump group, is very crucial.
Summary of the invention
In order to solve the problems of the technologies described above, the utility model provides the acid-proof pump machine seal apparatus of a kind of good sealing effect, long service life.
The technical solution adopted in the utility model is: comprise pump shaft, the pump housing and sealing gland, pump shaft is connected with the pump housing, joint pump shaft is provided with spring seat, rotating ring and stationary ring, rotating ring is positioned at the outside of spring seat, stationary ring is positioned at rotating ring outside, in the lacuna that spring seat, rotating ring and pump shaft surround, is provided with spring, and described sealing gland is fixedly mounted on the outside of the pump housing, sealing gland is sleeved on rotating ring and stationary ring, is respectively equipped with O type seal ring between sealing gland endoporus and rotating ring and stationary ring; Between the endoporus of rotating ring and pump shaft, be provided with O RunddichtringO, described stationary ring is connected by stop pin with sealing gland.
In above-mentioned acid-proof pump machine seal apparatus, in described rotating ring, outer end of hole place is provided with a ring-shaped depression structure, is provided with star seal ring in the lacuna that sunk structure, stationary ring and pump shaft surround.
Compared with prior art, the beneficial effects of the utility model are: in rotating ring of the present utility model, outer end of hole place is provided with a sunk structure, in the lacuna that sunk structure and stationary ring form, be provided with star seal ring, rotating ring pushes star seal ring in movement process, make sealability of the present utility model better, the wearing and tearing of stationary ring without counter productive, make sealing effect of the present utility model promote the sealing of star seal ring on the contrary.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
1. the pump housing; 2. pump shaft; 3. spring seat; 4. spring; 5. sealing gland; 6. rotating ring; 7. star seal ring; 8. O RunddichtringO; 9 stop pin; 10. stationary ring; 11. O RunddichtringOs; 12. O RunddichtringOs.
Embodiment
As shown in Figure 1, the utility model comprises pump shaft 2, the pump housing 1 and sealing gland 5, pump shaft 2 is connected with the pump housing 1, joint pump shaft 2 is provided with spring seat 3, rotating ring 6 and stationary ring 10, rotating ring 6 is positioned at the outside of spring seat 3, stationary ring 10 is positioned at rotating ring 6 outsides, in the lacuna that spring seat 3, rotating ring 6 and pump shaft 2 surround, be provided with spring 4, described sealing gland 5 is fixedly mounted on the outside of the pump housing 1, sealing gland 5 is sleeved on rotating ring 6 and stationary ring 10, is respectively equipped with O RunddichtringO 12,8 between the endoporus of sealing gland 5 and rotating ring 6 and stationary ring 10; Between the endoporus of rotating ring 6 and pump shaft 2, be provided with O RunddichtringO 11, described stationary ring 10 is connected by stop pin 9 with sealing gland 5.
Described rotating ring 6 adopts powder metallurgical technique to make by carbofrax material, carbofrax material has that density is low, decay resistance and thermal performance good, the premium properties such as friction factor is low, hardness is high, make rotating ring 6 of the present utility model not easy to wear, long service life, and significantly improved sealing effect of the present utility model.
The described interior outer end of hole of rotating ring 6 place is provided with a ring-shaped depression structure, in the lacuna that sunk structure, stationary ring 10 and pump shaft 2 surround, is provided with star seal ring 7.Rotating ring 6 pushes star seal ring 7 in movement process, makes sealability of the present utility model better, and the wearing and tearing of stationary ring 10 without counter productive, make sealing effect of the present utility model promote the sealing of star seal ring 7 on the contrary.
Claims (2)
1. an acid-proof pump machine seal apparatus, it is characterized in that: comprise pump shaft, the pump housing and sealing gland, pump shaft is connected with the pump housing, joint pump shaft is provided with spring seat, rotating ring and stationary ring, and rotating ring is positioned at the outside of spring seat, and stationary ring is positioned at rotating ring outside, in the lacuna that spring seat, rotating ring and pump shaft surround, be provided with spring, described sealing gland is fixedly mounted on the outside of the pump housing, and sealing gland is sleeved on rotating ring and stationary ring, is respectively equipped with O type seal ring between sealing gland endoporus and rotating ring and stationary ring; Between the endoporus of rotating ring and pump shaft, be provided with O RunddichtringO, described stationary ring is connected by stop pin with sealing gland.
2. acid-proof pump machine seal apparatus according to claim 1, is characterized in that: in described rotating ring, outer end of hole place is provided with a ring-shaped depression structure, is provided with star seal ring in the lacuna that sunk structure, stationary ring and pump shaft surround.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320559082.4U CN203441809U (en) | 2013-09-10 | 2013-09-10 | Acid proof pump machine sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320559082.4U CN203441809U (en) | 2013-09-10 | 2013-09-10 | Acid proof pump machine sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203441809U true CN203441809U (en) | 2014-02-19 |
Family
ID=50092868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320559082.4U Expired - Fee Related CN203441809U (en) | 2013-09-10 | 2013-09-10 | Acid proof pump machine sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203441809U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105402104A (en) * | 2015-12-16 | 2016-03-16 | 淄博华舜耐腐蚀真空泵有限公司 | Mechanical sealing element and mechanical sealing structure for vacuum pump |
-
2013
- 2013-09-10 CN CN201320559082.4U patent/CN203441809U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105402104A (en) * | 2015-12-16 | 2016-03-16 | 淄博华舜耐腐蚀真空泵有限公司 | Mechanical sealing element and mechanical sealing structure for vacuum pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140219 Termination date: 20150910 |
|
| EXPY | Termination of patent right or utility model |