CN201982291U - Three-screw double-seal insulation pump - Google Patents
Three-screw double-seal insulation pump Download PDFInfo
- Publication number
- CN201982291U CN201982291U CN2011200084352U CN201120008435U CN201982291U CN 201982291 U CN201982291 U CN 201982291U CN 2011200084352 U CN2011200084352 U CN 2011200084352U CN 201120008435 U CN201120008435 U CN 201120008435U CN 201982291 U CN201982291 U CN 201982291U
- Authority
- CN
- China
- Prior art keywords
- seal
- pump
- gland
- rotating shaft
- 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
Links
Images
Landscapes
- Rotary Pumps (AREA)
- Sealing Devices (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The utility model discloses a three-screw double-seal insulation pump, which comprises a pump body, a rotating shaft, a bearing body, a mechanical sealing device and a seal gland, wherein the rotating shaft penetrates the bearing body and the mechanical sealing device in sequence, is fixed through the seal gland and is connected with the pump body; a groove is formed on one side of the seal gland close to the exterior along the rotating shaft; a skeleton oil seal is arranged in the groove; and a gland is arranged on the outer side of the skeleton oil seal and fixed with the seal gland through a bolt. The insulation pump is doubly sealed, so that material in the pump body is prevented from leaking, the service life of products is prolonged and is 1.5 to 2 times of that of a common primary mechanical seal, and the long-term normal operation of the products is ensured; and even if slight leakage, one skeleton seal ring is replaced to enhance the economy of the pump.
Description
Technical field
The utility model relates to a kind of three screw pump, a kind of specifically three screw rod double-sealing thermal insulation pump.
Background technique
Along with development of science and technology, the application of screw pump in every field also more and more widely, by original lubricated industry, mechanical industry, now to industry penetrations such as chemical industry, metallurgy.Screw pump utilizes the kind of the medium that the characteristics of himself carry also more and more; Satisfying under the prerequisite that client's performance parameter requires simultaneously, also requiring more attractive in appearance the outward appearance of product.
It is 3.0～200mm that existing three screw pump is carried the range of viscosities of liquid
2/ S, when viscosity greater than 200mm
2More than/the S, will use Thermal insulation screw pump, and utilize the heat-insulation system of the pump housing self to transmit heat to medium.When some medium reaches the state of dilution at a certain temperature, only depend on mechanical seal can not seal seepage completely.
The model utility content
Technical problem to be solved in the utility model is, overcomes the shortcoming of prior art, proposes a kind of three screw rod double-sealing thermal insulation pump, guarantees that promptly pump housing materials inside does not leak outside, and do not influence the thermal insulation property of pump again.
In order to solve above technical problem, the utility model provides a kind of three screw rod double-sealing thermal insulation pump, it comprises the pump housing, rotating shaft, bearing support, mechanical seal device and sealing gland part, bearing support and mechanical seal are passed in described rotating shaft successively, fix and link to each other by described sealing gland in the pump housing, offer groove in the outer side of described sealing gland along described rotating shaft, and in described groove, be provided with outside framework oil seal.
The technological scheme that the utility model further limits is: aforesaid three screw rod double-sealing thermal insulation pump, in order to guarantee the stability of outside framework oil seal, difficult drop-off, also be provided with gland in the described outside framework oil seal outside, and fix with described sealing gland, the stability of outside framework oil seal is increased, and it is aging also to have slowed down outside framework oil seal.
Further, aforesaid three screw rod double-sealing thermal insulation pump, dismounting for convenience, described gland is by being bolted on the described sealing gland.
The beneficial effects of the utility model are: the utility model adopts double seal, both having guaranteed to seal up pump housing materials inside does not leak outside, can prolong the working life of product again, its life-span is to use 1.5～2 times of single track conventional machinery sealing, guarantees the long-term proper functioning of product.Even slight the leakage taken place,, make the Economy of pump strengthen as long as change a backbone sealing ring.But three screw rod double-sealing thermal insulation pump transfer of highly viscous materials of the present utility model, its viscosity number can reach: 900mm
2/ S (centistoke) is original more than 4 times.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is existing three screw rod thermal insulation pump structural representations.
Embodiment
Embodiment 1
A kind of three screw rod double-sealing thermal insulation pump that present embodiment provides, structure as shown in Figure 1, it comprises the pump housing 1, rotating shaft 2, bearing support 3, mechanical seal device 4 and sealing gland 5, bearing support 3 and mechanical seal device 4 are passed in described rotating shaft 2 successively, link to each other with the pump housing 1 by described sealing gland 5 is fixing, offer groove 6 in the outer side of described sealing gland along described rotating shaft, and in described groove 6, be provided with outside framework oil seal 7; Also be provided with gland 8 in the described outside framework oil seal outside, and fix by bolt 9 and described sealing gland 5.
The utility model structure internally sees that mechanical seal is adopted in the sealing of first road, is an end face of sealing system in system work process; And backbone sealing ring has been the effect of a compensation sealing, when first road is sealed with the effect that slight leakage can reach sealing by the sealing reinforced seal of second road, prolong product working life thereby reach, even slight the leakage taken place, as long as change a backbone sealing ring, make the Economy of pump strengthen.
In addition to the implementation, the utility model can also have other mode of executions.All employings are equal to the technological scheme of replacement or equivalent transformation formation, all drop on the protection domain of the utility model requirement.
Claims (3)
1. screw rod double-sealing thermal insulation pump, it comprises the pump housing, rotating shaft, bearing support, mechanical seal device and sealing gland, bearing support and mechanical seal are passed in described rotating shaft successively, fix and link to each other by described sealing gland in the pump housing, it is characterized in that: offer groove in the outer side of described sealing gland along described rotating shaft, and in described groove, be provided with outside framework oil seal.
2. three screw rod double-sealing thermal insulation pump according to claim 1 is characterized in that: also be provided with gland in the described outside framework oil seal outside, and fix with described sealing gland.
3. three screw rod double-sealing thermal insulation pump according to claim 2, it is characterized in that: described gland is by being bolted on the described sealing gland.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200084352U CN201982291U (en) | 2011-01-12 | 2011-01-12 | Three-screw double-seal insulation pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200084352U CN201982291U (en) | 2011-01-12 | 2011-01-12 | Three-screw double-seal insulation pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201982291U true CN201982291U (en) | 2011-09-21 |
Family
ID=44609753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200084352U Expired - Fee Related CN201982291U (en) | 2011-01-12 | 2011-01-12 | Three-screw double-seal insulation pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201982291U (en) |
-
2011
- 2011-01-12 CN CN2011200084352U patent/CN201982291U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103075347A (en) | Gap self-adaptive mixed type dual-sealing structure for roots pump drive end | |
| CN201982291U (en) | Three-screw double-seal insulation pump | |
| CN103803305A (en) | Double-sealed rotary valve | |
| CN207377815U (en) | A kind of heavy duty detergent chemical pump | |
| CN207661111U (en) | Shaft end sealing structure of speed reducer | |
| CN103363071B (en) | A kind of wind turbine gearbox planetary stage lubrication sealing configuration | |
| CN203948678U (en) | The box-like sealing configuration of a kind of valve sets | |
| CN202343519U (en) | Transmission shaft assembly for bottle washing machine | |
| CN204755383U (en) | A bearing seal structure for oil pump | |
| CN205592393U (en) | A metal framework PTFE sealing member for rotation axis | |
| CN202510412U (en) | Gas sealing device of main shaft of fan | |
| CN205207431U (en) | Magnetic suspension bearing keeps apart rotor structure | |
| CN203176355U (en) | Sealing structure of mortar mixer shaft end | |
| CN203892236U (en) | Mechanical sealing device with high interchangeability | |
| CN205806482U (en) | Combination hydraulic rotary shaft oil seal | |
| CN206785987U (en) | A kind of wind turbine gearbox carrier main-body sealing mechanism | |
| CN205639620U (en) | Non -contact's active cell and seal structure between stator | |
| CN201042659Y (en) | Novel discontinuous kneader | |
| CN204900825U (en) | Many lips revolve rotary shaft seal circle | |
| CN204685314U (en) | Horizontal spiral discharge sedimentation centrifuge tight anti-explosion structure | |
| CN204403632U (en) | Contact-type joint seal arrangement | |
| CN203730954U (en) | Ball mill feeding seal device | |
| CN209976781U (en) | Air sealing device for Roots blower | |
| CN202937810U (en) | Sealing device of rotating shaft of double-screw propulsion desulfurization device for junked tire powder | |
| CN206513835U (en) | A kind of unilateral fixed mechanical sealing mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110921 Termination date: 20140112 |