CN202690503U - Horizontal multi-stage pump axial inlet device and connecting structure of horizontal multi-stage pump axial inlet device - Google Patents
Horizontal multi-stage pump axial inlet device and connecting structure of horizontal multi-stage pump axial inlet device Download PDFInfo
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- CN202690503U CN202690503U CN 201220345436 CN201220345436U CN202690503U CN 202690503 U CN202690503 U CN 202690503U CN 201220345436 CN201220345436 CN 201220345436 CN 201220345436 U CN201220345436 U CN 201220345436U CN 202690503 U CN202690503 U CN 202690503U
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- stage pump
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- ended cylinder
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Abstract
The utility model discloses a horizontal multi-stage pump axial inlet device. The existing horizontal multi-stage pump has the defects that the axial inlet device is ponderous, and the sliding bearing friction area is large. The horizontal multi-stage pump axial inlet device consists of an inlet device main element, a connecting pipe, a passing screw fixing device and a wear-resistance sleeve, wherein the inlet device main element consists of an outer rotating body, an inner round tube and a rib plate, the outer rotating body and the inner round tube are coaxial, the inner round tube is provided with a bottom, one end of the outer rotating body is an inlet flange and is used for being connected with an inlet pipeline, one end of the outer rotating body is provided with a cover plate and is used for being connected with a first-stage section, a connecting pipe is arranged at the upper part of the external rotating body and is used for being communicated with a mechanical sealing lubricating cooling backflow pipeline, the passing screw fixing device is arranged on the periphery of the cover plate and is used for fixing a passing screw, the inner round tube with the bottom is used for fixing a sliding bearing. The horizontal multi-stage pump axial inlet device has the advantages that the size is small, the weight is light, and meanwhile, the effect of a bearing seat is realized. The device has the advantages that the multi-stage pump inlet end structure is light, ingenious and compact, the bearing friction area is small, and the friction loss is low. The wear-resistance sleeve is arranged at an opening ring part, and the local wear resistance performance is improved.
Description
Technical field
The utility model belongs to horizontal type multi-stage pump, specifically a kind of horizontal type multi-stage pump axial inlet device and linkage structure thereof.
Background technique
Horizontal type multi-stage pump is widely used in the industries such as embrane method desalination of sea water, water conservancy, petrochemical industry, sewage treatment.The horizontal type multi-stage pump that in the past obtained widely applying mainly is upper inlet upper outlet structure, and the multistage pump of this structure is in when work, fed sheet of a media in pump the deflection of overall flow direction nearly 180 °, flow losses are very large.The embrane method desalination of sea water that develops rapidly in recent years is with the horizontal type multi-stage pump forms that axially suck the top outlet that adopt more, the main flow direction nearly deflection of fed sheet of a media in pump 90 °, flow losses decrease.At present at home in the horizontal more piece pump of disclosed axial inlet, the entrance point structure mainly contains two kinds of forms, a kind of is that bearing is arranged on after the first stage impeller, the double plain bearing housing of doing of chopped-off head stator, for fixing sliding bearing, stator designs very widely, and not only weight is large, and occupy larger axial distance, increased the bulkiness of multistage pump.Another kind of entrance point sliding bearing is arranged on the first stage impeller choma outside, with the choma Spielpassung.Because first stage impeller choma diameter is large, must adopt large diameter sliding bearing to cooperate with it, has increased the friction area of sliding bearing and choma, leakage rate is increased; For with bearing fit, first stage impeller import and choma certainly will be widened, and cause the weight of pump to increase.In sum, there is the problem that the axial inlet device is heavy, the sliding bearing friction area is large in the axial inlet horizontal type multi-stage pump at present.。
The model utility content
The technical assignment of the technical problems to be solved in the utility model and proposition is to overcome the defective that the axial inlet device is heavy, the sliding bearing friction area is large that existing horizontal type multi-stage pump exists, and a kind of horizontal type multi-stage pump axial inlet device and linkage structure thereof are provided.
For reaching the purpose of this utility model, the technological scheme that horizontal type multi-stage pump axial inlet device of the present utility model adopts is: it comprises: inlet means main part, rod fixing device, adapter and wear-resistant sleeve, described rod fixing device and adapter are fixed on the inlet means main part, and described wear-resistant sleeve is fixed on the endoporus of inlet means main part.
As the optimization technique measure, described inlet means main part turns, is with round-ended cylinder and gusset to be made into integration by outer buttons, describedly is positioned at the inboard that described outer buttons is turned with round-ended cylinder, and described link of boards is turned and is with between the round-ended cylinder in described outer buttons.
As the optimization technique measure, described outer buttons turn comprise suction flange, cover plate and be connected to suction flange and cover plate between linkage section, the described inboard that is positioned at described linkage section with round-ended cylinder, described link of boards is between described linkage section and band round-ended cylinder.
As the optimization technique measure, described rod fixing device is positioned at the edge of described cover plate.
As the optimization technique measure, described wear-resistant sleeve is fixed on the position of the corresponding described cover plate of endoporus of described inlet means main part with pin.
As the optimization technique measure, described adapter is fixed on the described linkage section.
As the optimization technique measure, described neutral position, bottom with round-ended cylinder has perforate.
For reaching the purpose of this utility model, the technological scheme that the linkage structure of horizontal type multi-stage pump axial inlet device of the present utility model adopts is: it comprises: chopped-off head sections, axle sleeve, first stage impeller, chopped-off head stator axle sleeve, axle and inlet means main part, rod fixing device, adapter, wear-resistant sleeve;
Described axle sleeve, first stage impeller, chopped-off head stator axle sleeve are enclosed within on the axle and by the nut of shaft end and fix, and the chopped-off head guide blade sleeve puts at the chopped-off head guide vane teunnion;
Described inlet means main part turns, is with round-ended cylinder and gusset to be made into integration by outer buttons, describedly be positioned at the inboard that described outer buttons is turned with round-ended cylinder, described link of boards is turned and is with between the round-ended cylinder in described outer buttons, described rod fixing device and adapter are fixed on the inlet means main part, and described wear-resistant sleeve is fixed on the endoporus of inlet means main part;
Described rod fixing device is connected with described chopped-off head sections by rod and fastening piece, establish sliding bearing on the band round-ended cylinder, described axle sleeve is supported on and realizes the chopped-off head stator on this sliding bearing, first stage impeller is clamped between chopped-off head sections and the inlet means main part and the import external diameter of first stage impeller is positioned at described wear-resistant sleeve.
The beneficial effects of the utility model are: volume is little, lightweight, plays simultaneously the effect of bearing support, makes that multistage pump entrance point structure is light and handy compact, the pivot friction area is little, and frictional loss is low.The choma place arranges wear-resistant sleeve, has improved local abrasion resistance properties.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model;
Fig. 2 is that A-A among Fig. 1 is to sectional view;
Fig. 3 is with the schematic diagram of Standard shown in Figure 1 on the chopped-off head sections;
The number in the figure explanation:
1-rod and fastening piece, 2-rod fixing device, 3-inlet means main part, the 4-axle sleeve, the 5-nut, the 6-axle, the 7-sliding bearing, 8-takes over, 9-connecting tube, 10-chopped-off head sections, 11-chopped-off head stator, 12-wear-resistant sleeve, 13-chopped-off head stator axle sleeve, 14-first stage impeller;
The 3a-perforate, 3b-is with round-ended cylinder, 3c-gusset, 3d-suction flange, 3e-cover plate, 3f-linkage section.
Embodiment
Below in conjunction with Figure of description the utility model is described further.
Horizontal type multi-stage pump axial inlet device of the present utility model, as shown in Figure 1, 2, it comprises: inlet means main part 3, rod fixing device 2, adapter 8 and wear-resistant sleeve 12, rod fixing device 2 and adapter 8 are fixed on the inlet means main part 3, and wear-resistant sleeve 12 is fixed on the endoporus of inlet means main part 3.Taking over 8 is used for being communicated with the lubrication return line of mechanical seal.
Further: inlet means main part 3 turns, is with round-ended cylinder 3b and gusset 3c to be made into integration by outer buttons, is positioned at the inboard that outer buttons is turned with round-ended cylinder 3b, and gusset 3c is connected to outer buttons and turns and be with between the round-ended cylinder 3b.Outer buttons turn comprise for the suction flange 3d that is connected with inlet ductwork, be used for the cover plate 3e be connected with the chopped-off head sections and be connected to suction flange 3d and cover plate 3e between linkage section 3f, be positioned at the inboard of linkage section 3f with round-ended cylinder 3b, gusset 3c is connected between linkage section 3f and the band round-ended cylinder 3b.Rod fixing device 2 is positioned at the edge of cover plate 3e, is used for fixedly rod.Wear-resistant sleeve 12 usefulness pins are fixed on the position of the corresponding cover plate 3e of endoporus of inlet means main part 3.Taking over 8 is fixed on the linkage section 3f.Neutral position, bottom with round-ended cylinder 3b has perforate 3a, is used for circulation sliding bearing cooling and lubricating medium.
The linkage structure of horizontal type multi-stage pump axial inlet device of the present utility model comprises: chopped-off head sections 10, axle sleeve 4, first stage impeller 14, chopped-off head stator axle sleeve 13, axle 6 and inlet means main part 3, rod fixing device 2, adapter 8, wear-resistant sleeve 12;
Inlet means main part 3 turns, is with round-ended cylinder 3b and gusset 3c to be made into integration by outer buttons, be positioned at the inboard that outer buttons is turned with round-ended cylinder 3b, gusset 3c is connected to outer buttons and turns and be with between the round-ended cylinder 3b, rod fixing device 2 and adapter 8 are fixed on the inlet means main part 3, and wear-resistant sleeve 12 is fixed on the endoporus of inlet means main part 3;
Because sliding bearing is arranged on axle head, bearing diameter and little with the friction area of axle sleeve has reduced frictional loss.In addition, the double bearing support of doing of band round-ended cylinder makes Multi-stage pump structure light and handy, compact.With the link of boards at a plurality of intervals, flowing medium sucks from the space between the gusset between turning with round-ended cylinder and outer buttons.Therefore, horizontal type multi-stage pump axial inlet device volume of the present utility model is little, lightweight, plays simultaneously the effect of bearing support, makes that multistage pump entrance point structure is light and handy compact, the pivot friction area is little, and frictional loss is low.The choma place arranges wear-resistant sleeve, has improved local abrasion resistance properties.
The axle 6 of multistage pump shown in Figure 3 rotatablely moves under motivational drive, and axle sleeve 4 and impeller with axle 6 run-in synchronism occur, and axle sleeve 4 is supported by sliding bearing 7 and rotates friction with sliding bearing 7 internal surfaces.During first stage impeller 14 rotation, form negative pressure in first stage impeller 14 inlets, fed sheet of a media is inhaled into impeller from the space between the gusset 3c of inlet means main part 3.Medium is in first stage impeller 14 interior generation centrifugal rotation motions, and 14 pairs of media of first stage impeller do work, and energy increases, and medium enters subordinate's impeller by the guide functions of chopped-off head stator 11.After medium arrived first stage impeller 14 outlets, pressure increased, because first stage impeller choma place cooperates with wear-resistant sleeve 12 gaps, the high-pressure medium of impeller outlet side leaks by the low pressure area of gap to the impeller inlet side.Because the gap location runner is narrow, pressure reduction is large, and the working medium flow velocity is high, and medium causes severe impact to flow passage components, causes concentrated wear, at the choma place wear-resistant sleeve 12 is set, and can improve the wear resistance of structure.In pump inlet place, after medium is inhaled into from the space between the gusset 3c, form the local depression district in the pump inlet neutral position, and the highly pressurised liquid that leaks on a small quantity owing to existence in first stage impeller 14 inlets, pressure is higher than pump inlet place, under pressure reduction promotes, medium leaks to perforate 3a by the gap between sliding bearing 7 and the axle sleeve 4, form liquid and flow back to the road, sliding bearing 7 and the frictional heat of axle sleeve 4 are taken away, play the effect of lubrication.Connecting tube 9 with take over 8 and be connected, the mechanical seal leakage liquid of pump discharge end be communicated with pump inlet and form the loop, to the effect of mechanical seal realization lubrication.
Claims (8)
1. horizontal type multi-stage pump axial inlet device, it is characterized in that comprising: inlet means main part (3), rod fixing device (2), adapter (8) and wear-resistant sleeve (12), described rod fixing device (2) and adapter (8) are fixed on the inlet means main part (3), and described wear-resistant sleeve (12) is fixed on the endoporus of inlet means main part (3).
2. horizontal type multi-stage pump axial inlet device according to claim 1, it is characterized in that: described inlet means main part (3) turns, is with round-ended cylinder (3b) and gusset (3c) to be made into integration by outer buttons, described band round-ended cylinder (3b) is positioned at the inboard that described outer buttons is turned, and described gusset (3c) is connected to described outer buttons and turns and be with between the round-ended cylinder (3b).
3. horizontal type multi-stage pump axial inlet device according to claim 2, it is characterized in that: described outer buttons turn comprise suction flange (3d), cover plate (3e) and be connected to suction flange (3d) and cover plate (3e) between linkage section (3f), described band round-ended cylinder (3b) is positioned at the inboard of described linkage section (3f), and described gusset (3c) is connected between described linkage section (3f) and the band round-ended cylinder (3b).
4. horizontal type multi-stage pump axial inlet device according to claim 3, it is characterized in that: described rod fixing device (2) is positioned at the edge of described cover plate (3e).
5. horizontal type multi-stage pump axial inlet device according to claim 3 is characterized in that: described wear-resistant sleeve (12) is fixed on the position of the corresponding described cover plate of endoporus (3e) of described inlet means main part (3) with pin.
6. horizontal type multi-stage pump axial inlet device according to claim 3, it is characterized in that: described adapter (8) is fixed on the described linkage section (3f).
7. according to claim 2 or 3 described horizontal type multi-stage pump axial inlet devices, it is characterized in that: the neutral position, bottom of described band round-ended cylinder (3b) has perforate (3a).
8. the linkage structure of horizontal type multi-stage pump axial inlet device is characterized in that comprising: chopped-off head sections (10), axle sleeve (4), first stage impeller (14), chopped-off head stator axle sleeve (13), axle (6) and inlet means main part (3), rod fixing device (2), adapter (8), wear-resistant sleeve (12);
It is upper and fixing by the nut (5) of axle (6) end that described axle sleeve (4), first stage impeller (14), chopped-off head stator axle sleeve (13) are enclosed within axle (6), and chopped-off head stator (11) is enclosed within on the chopped-off head stator axle sleeve (13);
Described inlet means main part (3) turns, is with round-ended cylinder (3b) and gusset (3c) to be made into integration by outer buttons, described band round-ended cylinder (3b) is positioned at the inboard that described outer buttons is turned, described gusset (3c) is connected to described outer buttons and turns and be with between the round-ended cylinder (3b), described rod fixing device (2) and adapter (8) are fixed on the inlet means main part (3), and described wear-resistant sleeve (12) is fixed on the endoporus of inlet means main part (3);
Described rod fixing device (2) is connected with described chopped-off head sections (10) by rod and fastening piece (1), establish sliding bearing (7) on the band round-ended cylinder (3b), described axle sleeve (4) is supported on the upper realization of this sliding bearing (7) chopped-off head stator (11), first stage impeller (14) is clamped between chopped-off head sections (10) and the inlet means main part (3) and the import external diameter of first stage impeller (14) is positioned at described wear-resistant sleeve (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220345436 CN202690503U (en) | 2012-07-17 | 2012-07-17 | Horizontal multi-stage pump axial inlet device and connecting structure of horizontal multi-stage pump axial inlet device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220345436 CN202690503U (en) | 2012-07-17 | 2012-07-17 | Horizontal multi-stage pump axial inlet device and connecting structure of horizontal multi-stage pump axial inlet device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202690503U true CN202690503U (en) | 2013-01-23 |
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ID=47546129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220345436 Withdrawn - After Issue CN202690503U (en) | 2012-07-17 | 2012-07-17 | Horizontal multi-stage pump axial inlet device and connecting structure of horizontal multi-stage pump axial inlet device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202690503U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102734203A (en) * | 2012-07-17 | 2012-10-17 | 浙江佳力科技股份有限公司 | Horizontal multistage pump axial inlet device and connecting structure thereof |
-
2012
- 2012-07-17 CN CN 201220345436 patent/CN202690503U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102734203A (en) * | 2012-07-17 | 2012-10-17 | 浙江佳力科技股份有限公司 | Horizontal multistage pump axial inlet device and connecting structure thereof |
| CN102734203B (en) * | 2012-07-17 | 2014-08-20 | 浙江佳力科技股份有限公司 | Horizontal multistage pump axial inlet device and connecting structure thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130123 Effective date of abandoning: 20140820 |
|
| RGAV | Abandon patent right to avoid regrant |