CN203614427U - Shield pump and pump body inlet structure thereof - Google Patents
Shield pump and pump body inlet structure thereof Download PDFInfo
- Publication number
- CN203614427U CN203614427U CN201320854925.3U CN201320854925U CN203614427U CN 203614427 U CN203614427 U CN 203614427U CN 201320854925 U CN201320854925 U CN 201320854925U CN 203614427 U CN203614427 U CN 203614427U
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- CN
- China
- Prior art keywords
- pump housing
- entrance structure
- pump
- blade
- entrance
- 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 - Lifetime
Links
- 238000013016 damping Methods 0.000 claims description 6
- 239000012530 fluid Substances 0.000 abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 7
- 238000000034 method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000008676 import Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Images
Abstract
The utility model discloses a shield pump and a pump body inlet structure thereof. The pump body inlet structure comprises a pump body (2) and an impeller (1) arranged in the pump body (2), wherein the pump body (2) comprises a supporting plate (23) and a supporting post (22); the supporting plate (23) is arranged on the side, close to an inlet (24) of the pump body (2); the supporting post (22) is arranged on the side, far away from the inlet (24), of the supporting plate (23); the impeller (1) comprises a blade (11) and a rotary supporting part (12); the blade (11) is arranged on the side, close to the inlet (24) of the pump body (2); the rotary supporting part (12) is rotationally arranged in the manner of being relative to the supporting post (22); the blade (11) is provided with a center inlet facing the inlet (24) of the pump body (2), and an blade end outlet communicated with an outlet (25) of the pump body (2). According to the pump body inlet structure provided by the utility model, the flowing resistance of a fluid is effectively reduced, and the water conservation efficiency of the shield pump is improved.
Description
Technical field
The utility model relates to pumping unit technical field, particularly a kind of canned motorpump and pump housing entrance structure thereof.
Background technique
Canned motorpump is a kind of unprssurized pump, is usually used in hot water heat pump.In current canned motorpump, pump housing entrance structure comprises the pump housing and is arranged at the impeller of pump housing ingress, and the ingress of the pump housing is provided with axle supporting base, rotates with respect to the pump housing so that support impeller.
Because axle supporting base provides support power to impeller, it is arranged in the import near the blade of ingress, make axle supporting base and impeller less near the gap between the import of the blade of ingress, due to stopping of axle supporting base, make impeller in the process of High Rotation Speed inhalation flow, the flow resistance being subject to when import that fluid flows through axle supporting base and enters blade is larger, and then convection cell causes the larger drag losses that is subject to, and makes the hydraulic efficiency of canned motorpump not high.
Therefore, how reducing fluid flow resistance, improve the water conservancy efficiency of canned motorpump, is the art personnel problem demanding prompt solutions.
Model utility content
In view of this, the utility model provides a kind of pump housing entrance structure, to reduce fluid flow resistance, improves the water conservancy efficiency of canned motorpump.The utility model also provides a kind of canned motorpump with above-mentioned pump housing entrance structure.
For achieving the above object, the utility model provides following technological scheme:
A kind of pump housing entrance structure, comprises the pump housing and is arranged at the impeller in the described pump housing,
The described pump housing comprises: be arranged at the dunnage of a side of the entrance of the close described pump housing, be arranged at the supporting post of described dunnage away from a side of described entrance;
Described impeller comprises: be arranged at the blade of a side of the entrance of the close described pump housing, rotate the rotational support portion arranging with respect to described supporting post;
The end of blade outlet that described blade has the central inlet arranging towards the entrance of the described pump housing and is communicated with the outlet of the described pump housing.
Preferably, in above-mentioned pump housing entrance structure, described dunnage near the angle between the edge of described supporting post and the axis of described supporting post at 85 ° within the scope of 100 °.
Preferably, in above-mentioned pump housing entrance structure, on described supporting post, be provided with axle head nested, in described axle head is nested, be provided with pump shaft;
Described rotational support portion is sheathed on described pump shaft.
Preferably, in above-mentioned pump housing entrance structure, described pump shaft be fixedly installed on described axle head nested in;
Between described rotational support portion and described pump shaft, be provided with bearing.
Preferably, in above-mentioned pump housing entrance structure, the outer ring interference fit of described rotational support portion and described bearing.
Preferably, in above-mentioned pump housing entrance structure, between described bearing and described axle head are nested, be provided with damping washer.
Preferably, in above-mentioned pump housing entrance structure, described bearing is provided with positioning ring away from the nested one end of described axle head.
Preferably, in above-mentioned pump housing entrance structure, the described pump housing also comprises annular guiding groove, and described impeller also comprises the circular orientation projection matching with described annular guiding groove.
Preferably, in above-mentioned pump housing entrance structure, described circular orientation projection is arranged at the side of described blade near described entrance.
The utility model also provides a kind of canned motorpump, comprises pump housing entrance structure, and described pump housing entrance structure is the pump housing entrance structure as described in above-mentioned any one.
Can find out from above-mentioned technological scheme, the pump housing entrance structure that the utility model provides, in pump work process, impeller rotates with respect to the pump housing, under the centrifugal action producing in wheel rotation, fluid is entered the central inlet of blade by the entrance of the pump housing, and is flowed out to the outlet of the pump housing by the end of blade outlet of blade.In the pump housing entrance structure that the utility model provides, impeller comprises blade and rotational support portion, rotational support portion is by being arranged at the supporting post rotational support of dunnage away from a side of entrance, and blade is arranged at the side near the entrance of the pump housing, make to there is height difference between blade and rotational support portion, fluid stream flows to end of blade outlet port smoothly by the central inlet of blade, has effectively reduced fluid flow resistance, has improved the water conservancy efficiency of canned motorpump.
The utility model also provides a kind of canned motorpump, comprises pump housing entrance structure, and pump housing entrance structure is as above-mentioned any pump housing entrance structure.Because above-mentioned pump housing entrance structure has above-mentioned beneficial effect, the canned motorpump with above-mentioned pump housing entrance structure also should have same technique effect, introduces no longer in detail at this.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The structural representation of the pump housing entrance structure that Fig. 1 provides for the utility model embodiment;
The structural representation of the pump housing that Fig. 2 provides for the utility model embodiment;
The schematic top plan view of the pump housing that Fig. 3 provides for the utility model embodiment;
The structural representation of the impeller that Fig. 4 provides for the utility model embodiment.
Wherein,
Impeller-1, blade-11, rotational support portion-12, circular orientation projection-13, the pump housing-2, axle head is nested-21, supporting post-22, dunnage-23, entrance-24, outlet-25, annular guiding groove-26, pump shaft-3, bearing-4.
Embodiment
The utility model discloses a kind of pump housing entrance structure, to reduce fluid flow resistance, improve the water conservancy efficiency of canned motorpump.The utility model also provides a kind of canned motorpump with above-mentioned pump housing entrance structure.
Below in conjunction with the accompanying drawing in the utility model embodiment, the technological scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiments.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment who obtains under creative work prerequisite, all belong to the scope of the utility model protection.
Please refer to Fig. 1, the structural representation of the pump housing entrance structure that Fig. 1 provides for the utility model embodiment.
As shown in Figure 1, the pump housing entrance structure that the utility model embodiment provides, comprise the pump housing 2 and be arranged at the impeller 1 in the pump housing 2, the pump housing 2 comprises dunnage 23 and supporting post 22, dunnage 23 is arranged at the side near the entrance 24 of the pump housing 2, and supporting post 22 is arranged at the side of dunnage 23 away from entrance 24; Impeller 1 comprises blade 11 and rotational support portion 12, and blade 11 is arranged at the side near the entrance 24 of the pump housing 2, and rotational support portion 12 rotates and arranges with respect to supporting post 22; Blade 11 has the central inlet arranging towards the entrance 24 of the pump housing 2 and the end of blade being communicated with the outlet 25 of the pump housing 2 outlet.
In pump work process, impeller 1 rotates with respect to the pump housing 2, rotates under the centrifugal action producing at impeller 1, and fluid is entered the central inlet of blade 11 by the entrance 24 of the pump housing 2, and is flowed out to the outlet 25 of the pump housing 2 by the end of blade outlet of blade 11.In the pump housing entrance structure that the utility model embodiment provides, impeller 1 comprises blade 11 and rotational support portion 12, rotational support portion 12 is by being arranged at supporting post 22 rotational support of dunnage 23 away from a side of entrance 24, and blade 11 is arranged at the side near the entrance 24 of the pump housing 2, make to there is height difference between blade 11 and rotational support portion 12, fluid stream flows to end of blade outlet port smoothly by the central inlet of blade 11, effectively reduce fluid flow resistance, improved the water conservancy efficiency of canned motorpump.
In the present embodiment, excessive and increase and the area of contact of fluid for fear of dunnage 23 angles of inclination, preferably by dunnage 23 near the angle between the edge of supporting post 22 and the axis of supporting post 22 at 85 ° within the scope of 100 °.Be that dunnage 23 is similar to vertical setting with supporting post 22, dunnage 23 and the area of fluid contact reduced, and then reduce the flow resistance of convection cell.
In order to improve the rotational stability of impeller 1 with respect to the pump housing 2, on the supporting post 22 of the pump housing 2, be provided with axle head nested 21, in axle head nested 21, be provided with pump shaft 3; Rotational support portion 12 is sheathed on pump shaft 3.By pump shaft 3 is set, improve the rotational stability of rotational support portion 12 with respect to supporting post 22.
Further, rotational support portion 12 is rotationally connected with pump shaft 3.Pump shaft 3 is fixedly installed in axle head nested 21, between rotational support portion 12 and pump shaft 3, is provided with bearing 4.By bearing 4 being set between rotational support portion 12 and pump shaft 3, rotational support portion 12 is rotated with respect to pump shaft 3, and pump shaft 3 is fixedly installed in axle head nested 21, improve the stability of pump shaft 3.
Further, bearing 4 is fluid lubrication graphite bearing.
In the pump housing entrance structure providing in the utility model embodiment, the outer ring interference fit of rotational support portion 12 and bearing 4.By the inner ring and the support force that rotational support portion 12 is provided coordinating of outer ring of bearing 4, to reach the effect of supporting impeller 1.In the endoporus that also can coordinate in the outer ring of bearing 4 in rotational support portion 12, set up limiting stopper, to limit the outer ring of bearing 4 and the axial motion of rotational support portion 12, can provide support power to impeller 1 equally.
As shown in Figure 1, between bearing 4 and axle head nested 21, be provided with damping washer.By damping washer is set, the vibration between axle head nested 21 and rotational support portion 12 is played to effectiveness in vibration suppression, and then effectively reduce the extent of vibration of impeller 1 with respect to the pump housing 2, improve the operation stability of pump.
Further, bearing 4 is provided with positioning ring away from one end of axle head nested 21, and by one end of bearing 4 is arranged to positioning ring damping washer, the other end arranges damping washer, effectively improve the axially locating effect of bearing 4 on pump shaft 3, and then improved the stability that impeller 1 rotates.
As shown in Figure 2 and Figure 4, the pump housing 2 also comprises annular guiding groove 26, and impeller 1 also comprises the circular orientation projection 13 matching with annular guiding groove 26.By coordinating of circular orientation projection 13 and annular guiding groove 26, improve the leading role that impeller 1 is rotated, further improve the rotational stability of impeller 1 with respect to the pump housing 2.
As shown in Figure 3, in the pump housing entrance structure that the utility model embodiment provides, the quantity of dunnage 23 is 3, and being circumferentially uniformly distributed along entrance 24.
Further, in the pump housing entrance structure that the utility model embodiment provides, circular orientation projection 13 is arranged at the side of blade 11 near entrance 24, and annular guiding groove 26 is opening up, is connected with circular orientation projection 13.Annular guiding groove 26 is in to circular orientation projection 13 guiding, and its groove bottom produces support force to circular orientation projection 13, further provides effective support force to impeller 1, avoids impeller 1 axial motion.Also circular orientation projection 13 can be arranged on the outer wall of blade 11, circular orientation projection 13 can also be arranged on the inwall of central inlet of blade 11, introduce no longer one by one and all within protection domain at this.
The utility model embodiment also provides a kind of canned motorpump, comprises pump housing entrance structure, and pump housing entrance structure is as above-mentioned any pump housing entrance structure.Because above-mentioned pump housing entrance structure has above-mentioned beneficial effect, the canned motorpump with above-mentioned pump housing entrance structure also should have same technique effect, introduces no longer in detail at this.
In this specification, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is and other embodiments' difference, between each embodiment identical similar part mutually referring to.
To the above-mentioned explanation of the disclosed embodiments, make professional and technical personnel in the field can realize or use the utility model.To be apparent for those skilled in the art to these embodiments' multiple modification, General Principle as defined herein can, in the situation that not departing from spirit or scope of the present utility model, realize in other embodiments.Therefore, the utility model will can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. a pump housing entrance structure, comprises the pump housing (2) and is arranged at the impeller (1) in the described pump housing (2), it is characterized in that,
The described pump housing (2) comprising: be arranged at the dunnage (23) of a side of the entrance (24) of the close described pump housing (2), be arranged at the supporting post (22) of described dunnage (23) away from a side of described entrance (24);
Described impeller (1) comprising: be arranged at the blade (11) of a side of the entrance (24) of the close described pump housing (2), rotate the rotational support portion (12) arranging with respect to described supporting post (22);
The end of blade outlet that described blade (11) has the central inlet arranging towards the entrance (24) of the described pump housing (2) and is communicated with the outlet (25) of the described pump housing (2).
2. pump housing entrance structure according to claim 1, is characterized in that, described dunnage (23) near the angle between the edge of described supporting post (22) and the axis of described supporting post (22) at 85 ° within the scope of 100 °.
3. pump housing entrance structure as claimed in claim 1, is characterized in that, is provided with axle head nested (21) on described supporting post (22), and described axle head is provided with pump shaft (3) in nested (21);
Described rotational support portion (12) is sheathed on described pump shaft (3).
4. pump housing entrance structure as claimed in claim 2, is characterized in that, described pump shaft (3) is fixedly installed in described axle head nested (21);
Between described rotational support portion (12) and described pump shaft (3), be provided with bearing (4).
5. pump housing entrance structure as claimed in claim 4, is characterized in that, the outer ring interference fit of described rotational support portion (12) and described bearing (4).
6. pump housing entrance structure as claimed in claim 5, is characterized in that, described bearing (4) and described axle head are provided with damping washer between nested (21).
7. pump housing entrance structure as claimed in claim 6, is characterized in that, described bearing (4) is provided with positioning ring away from one end of described axle head nested (21).
8. pump housing entrance structure as claimed in claim 1, is characterized in that, the described pump housing (2) also comprises annular guiding groove (26), and described impeller (1) also comprises the circular orientation projection (13) matching with described annular guiding groove (26).
9. pump housing entrance structure as claimed in claim 8, is characterized in that, described circular orientation projection (13) is arranged at the side of described blade (11) near described entrance (24).
10. a canned motorpump, comprises pump housing entrance structure, it is characterized in that, described pump housing entrance structure is the pump housing entrance structure as described in claim 1-9 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320854925.3U CN203614427U (en) | 2013-12-23 | 2013-12-23 | Shield pump and pump body inlet structure thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320854925.3U CN203614427U (en) | 2013-12-23 | 2013-12-23 | Shield pump and pump body inlet structure thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203614427U true CN203614427U (en) | 2014-05-28 |
Family
ID=50767078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320854925.3U Expired - Lifetime CN203614427U (en) | 2013-12-23 | 2013-12-23 | Shield pump and pump body inlet structure thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203614427U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104728122B (en) * | 2013-12-23 | 2017-12-08 | 珠海格力节能环保制冷技术研究中心有限公司 | Canned motor pump and its pump housing entrance structure |
-
2013
- 2013-12-23 CN CN201320854925.3U patent/CN203614427U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104728122B (en) * | 2013-12-23 | 2017-12-08 | 珠海格力节能环保制冷技术研究中心有限公司 | Canned motor pump and its pump housing entrance structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140528 |