CN205533276U - There is not sealed pipeline pump - Google Patents
There is not sealed pipeline pump Download PDFInfo
- Publication number
- CN205533276U CN205533276U CN201620066434.6U CN201620066434U CN205533276U CN 205533276 U CN205533276 U CN 205533276U CN 201620066434 U CN201620066434 U CN 201620066434U CN 205533276 U CN205533276 U CN 205533276U
- Authority
- CN
- China
- Prior art keywords
- pump
- impeller
- pump shaft
- sealing
- shaft
- 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
- 238000007789 sealing Methods 0.000 claims abstract description 35
- 210000004907 gland Anatomy 0.000 claims abstract description 10
- 230000000694 effects Effects 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 5
- 239000007788 liquid Substances 0.000 abstract description 4
- 238000002425 crystallisation Methods 0.000 abstract description 2
- 230000008025 crystallization Effects 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 230000003068 static effect Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a there is not sealed pipeline pump, including motor, pump shaft and the pump body, be provided with the pump cover at the top of the pump body, and the top of pump shaft is continuous with the motor, its bottom is then pass the pump cover and link to each other with the pump body, wherein, be provided with labyrinth seals on the pump cover, and be provided with sealing gland, oil blanket and parallel key between pump shaft and pump cover, this oil blanket compresses tightly through sealing gland, simultaneously, be provided with impeller and auxiliary impeller in the inside of the pump body, and the pump shaft passes auxiliary impeller and impeller in proper order, between pump shaft and the impeller then through impeller nut with end the ear pad circle and fix. Promptly the utility model discloses a back at the impeller has increased auxiliary impeller to increase labyrinth seals and oil blanket on the pump cover, thereby weakened the pressure of sealed intracavity, and then reached sealed effect, have prevent leaking that the performance is good, long service life, the maintenance cost is low, whole appearance is pleasing to the eye and can carry the great medium of ropimess or the advantages such as liquid of easy crystallization.
Description
Technical field
This utility model relates to canned pump technical field, particularly to a kind of without sealing pipeline pump.
Background technology
Nowadays, existing pipeline pump is then mechanical seal, i.e. movable sealing design；This kind of mechanical seal can with the high-speed rotary of pump shaft then gradually wear out, cause pump shaft to get rusty or the axial float of pump shaft and have a strong impact on the service life of mechanical seal, thus have to increase accessory and the expense of maintenance.The water pump that particularly motor is bigger, its maintenance work and inconvenience thereof.
Utility model content
In order to solve the problems referred to above, this utility model provides a kind of without sealing pipeline pump, uses static seal design, is usable in rugged environment or the little occasion of water pump installing space；Meanwhile, design relative to movable sealing, there is the feature of wear-out life length, thus avoid axial float and pump shaft gets rusty the impact on sealing property.
One in this utility model is without sealing pipeline pump, and including motor, pump shaft and the pump housing, the top of the described pump housing is provided with pump cover, and the top of described pump shaft is connected with motor, and the bottom of described pump shaft through pump cover and is connected with the pump housing；Wherein, described pump cover being provided with labyrinth seal, be provided with sealing gland, oil sealing and flat key between described pump shaft and pump cover, described oil sealing is compressed by sealing gland；
The described pump housing be internally provided with impeller and accessory impeller, described pump shaft sequentially passes through accessory impeller and impeller, between described pump shaft and impeller by impeller nut and only aural grommet be fixed.
In the said equipment, the inside of the described pump housing is additionally provided with drain screw.
In the said equipment, the outside of described pump shaft is cased with retaining ring.
Advantage of the present utility model and having the beneficial effects that: this utility model provides a kind of without sealing pipeline pump, by adding accessory impeller after impeller, and on pump cover, add labyrinth seal and oil sealing, thus weaken the pressure in annular seal space, and then reach the effect sealed, have:
1, use accessory impeller, labyrinth seal and the triple seal mode of oil sealing, it is ensured that water pump does not operationally have leakage, use in the low occasion of inlet pressure；
2, service life is long, and maintenance cost is low；When occurring leaking on a small quantity, it is only necessary to fasten sealing gland again, the use demand of adverse circumstances can be met；
3, monnolithic case is attractive in appearance and reasonable in design, and steady, low noise, the life-span length of water pump operation and the requirement such as easy to maintenance can be effectively ensured；
4, owing to have employed static seal design, the bigger medium of toughness or the liquid of easily crystallization can be carried, and leakage will not be caused because of medium influence machine envelope.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in describing below is only embodiments more of the present utility model, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is without sealing pipeline pump structure schematic diagram in this utility model.
In figure: 1, motor 2, retaining ring 3, pump cover 4, sealing gland
5, oil sealing 6, accessory impeller 7, pump shaft 8, the pump housing
9, impeller 10, impeller nut 11, only aural grommet 12, flat key
13, drain screw
Detailed description of the invention
Below in conjunction with the accompanying drawings and embodiment, detailed description of the invention of the present utility model is further described.Following example are only used for clearly illustrating the technical solution of the utility model, and can not limit protection domain of the present utility model with this.
As it is shown in figure 1, this utility model is a kind of without sealing pipeline pump, including motor 1 pump shaft 7 and the pump housing 8, and the top of the pump housing 8 is provided with pump cover 3；The top of this pump shaft 7 is connected with motor 1, then through pump cover 3 and is connected with the pump housing 8 bottom it.
Wherein, being provided with labyrinth seal (marking the most in the drawings), and be provided with sealing gland 4, oil sealing 5 and flat key 12 between pump shaft 7 and pump cover 3 on pump cover 3, this oil sealing 5 is compressed by sealing gland 4；Thus weaken the pressure in annular seal space by labyrinth seal and oil sealing 5, thus reach the effect sealed.
Meanwhile, it is internally provided with impeller 9 and accessory impeller 6 at the pump housing 8, and above-mentioned pump shaft 7 sequentially passes through accessory impeller 6 and impeller 9 so that accessory impeller 6 and impeller 9 constitute and rotate coaxially mechanism；Additionally, between pump shaft 7 and impeller 9 by impeller nut 10 and only aural grommet 11 be fixed.
Preferably, in order to improve discharging water and water resistance of equipment, so be also provided with drain screw 13 in the inside of the pump housing 8, it is cased with retaining ring 2 in the outside of pump shaft 7 simultaneously.
In this utility model, the operation principle without sealing pipeline pump is:
First, impeller 9 and accessory impeller 6 is delivered torque to by pump shaft 7 and flat key 12 by motor 1, transferred by the high-speed rotary of accessory impeller 6 and reduce the pressure entered in pump chamber, thus play the effect of sealing, and only water pump operation time accessory impeller 6 just work, impeller 9 then forms flow and pressure by the effect of centrifugal force.
Meanwhile, impeller nut 10 plays the effect of fixing impeller 9, can effectively prevent coming off of impeller 9；Then it is used for as only aural grommet 11 preventing the reversion of impeller 9 from causing impeller nut 10 to loosen.
Additionally, the liquid in order to leak out when preventing bad seals enter motor 1, so being provided with retaining ring 2, liquid radially be thrown away, thus ensure that motor 1 is without damage.
The foregoing is only preferred embodiment of the present utility model; not in order to limit this utility model; all within spirit of the present utility model and principle, any modification, equivalent substitution and improvement etc. made, within should be included in protection domain of the present utility model.
Claims (3)
1. without sealing a pipeline pump, including motor, pump shaft and the pump housing, the top of the described pump housing is provided with pump cover, and the top of described pump shaft is connected with motor, and the bottom of described pump shaft through pump cover and is connected with the pump housing；It is characterized in that, described pump cover is provided with labyrinth seal, being provided with sealing gland, oil sealing and flat key between described pump shaft and pump cover, described oil sealing is compressed by sealing gland；
The described pump housing be internally provided with impeller and accessory impeller, described pump shaft sequentially passes through accessory impeller and impeller, between described pump shaft and impeller by impeller nut and only aural grommet be fixed.
The most according to claim 1 a kind of without sealing pipeline pump, it is characterised in that the inside of the described pump housing is additionally provided with drain screw.
The most according to claim 1 a kind of without sealing pipeline pump, it is characterised in that the outside of described pump shaft is cased with retaining ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620066434.6U CN205533276U (en) | 2016-01-22 | 2016-01-22 | There is not sealed pipeline pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620066434.6U CN205533276U (en) | 2016-01-22 | 2016-01-22 | There is not sealed pipeline pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205533276U true CN205533276U (en) | 2016-08-31 |
Family
ID=56768991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620066434.6U Expired - Fee Related CN205533276U (en) | 2016-01-22 | 2016-01-22 | There is not sealed pipeline pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205533276U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106762817A (en) * | 2016-12-23 | 2017-05-31 | 安徽六国化工股份有限公司 | A kind of improved centrifugal high pressure fan for reducing air quantity leakage |
| CN108252925A (en) * | 2016-12-28 | 2018-07-06 | 上海佰诺泵阀有限公司 | Vertical pipeline mounted pump |
-
2016
- 2016-01-22 CN CN201620066434.6U patent/CN205533276U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106762817A (en) * | 2016-12-23 | 2017-05-31 | 安徽六国化工股份有限公司 | A kind of improved centrifugal high pressure fan for reducing air quantity leakage |
| CN108252925A (en) * | 2016-12-28 | 2018-07-06 | 上海佰诺泵阀有限公司 | Vertical pipeline mounted 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: 20160831 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |