CN102322424B - Jet self-sucking centrifugal water pump - Google Patents
Jet self-sucking centrifugal water pump Download PDFInfo
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- CN102322424B CN102322424B CN 201110308438 CN201110308438A CN102322424B CN 102322424 B CN102322424 B CN 102322424B CN 201110308438 CN201110308438 CN 201110308438 CN 201110308438 A CN201110308438 A CN 201110308438A CN 102322424 B CN102322424 B CN 102322424B
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Abstract
The invention discloses a jet self-sucking centrifugal water pump. The pump comprises a pump body, a nozzle, a diffuser, an impeller, an inner pump cover, a guide blade, an outer pump cover, a pump shaft, a bracket and a motor, wherein the motor is directly connected with the bracket; the pump shaft is coaxially connected with the motor; the impeller is arranged at the end of the pump shaft; two sides of the impeller are provided with a centrifugal pump chamber structure through matching of the outer pump cover, the guide blade and the inner pump cover; the opened end of the pump body is connected with the outer pump cover in a sealed mode, so that a centrifugal pump chamber is accommodated in the pump body; axial through holes are uniformly distributed on the end face of the inner pump cover and communicated with a water outlet cavity of the pump body; the diffuser is connected between the inner pump cover and a clapboard in the sealed mode; the end of the diffuser, which is positioned at one end of a water sucking port, is coaxially provided with the nozzle to form a jet pump structure; and the outlet of the diffuser is positioned at the inlet of the impeller. A jet pump and a centrifugal pump are integrated to achieve performance complementation; the jet pump helps the centrifugal pump to self-suck, the self-sucking process is short, and self-sucking capability is high; and the pump has an integrated structure and is not required to be additionally provided with a self-sucking device, so that matching cost is saved, and the pump is particularly suitable to be used as a marine pump.
Description
Technical field
The present invention relates to a kind of water pump structure, specifically, the present invention relates to a kind of jet self-sucking centrifugal water pump.
Background technique
Centrifugal water pump belongs to main flow pump product, and is extensively supporting in conventional water-carriage system.Very weak from structure centrifugal pump suction capacity itself, usually under the effect of additional self-priming apparatus, realize self-priming.The existing supporting self-priming apparatus of centrifugal pump has the various structures form, wherein structure is the simplest is built-in return port between pump housing water outlet and water sucking mouth, the MEDIA FLOW of impeller output was shunted a part to the water sucking mouth by return port after centrifugal water pump started, part MEDIA FLOW so circulation is facilitated the pump water sucking mouth to form negative pressure and is realized self-priming, and this structure exchanges the pump self-priming for by sacrificing pump efficiency.The structure of positive displacement retaining self-priming apparatus is equally also very simple, but volume is larger, is not suitable for marine equipment.Vacuum type self-priming apparatus compact structure realizes that self-priming time is short, and suction capacity is strong, but needs to be equipped with the kind equipment of corresponding air compressor or vacuum pump, increases thus match power, increases supporting cost.
Summary of the invention
The present invention is not enough mainly for prior art, proposes a kind of simple and reasonable for structurely, and suction capacity is strong, the jet type self priming centrifugal pump that efficient is high.
The present invention is achieved through the following technical solutions technical goal.
Jet type self priming centrifugal pump, it is a kind of horizontally-arranged structure pump, comprises the pump housing, nozzle, Diffuser, impeller, interior pump cover, stator, outer pump cover, pump shaft, carriage and motor.Described motor output shaft end face direct connection carriage, pump shaft is connected with motor coaxle, and the impeller location and installation is in the pump shaft end, and the impeller both sides are cooperated by outer pump cover and stator and interior pump cover respectively and consist of the centrifugal pump pump chamber structure.The described pump housing is the prone position open hood type container, is provided with the water sucking mouth towards the exterior edge face upper semisection, and pump housing end face is provided with water outlet, pump housing inner chamber becomes two Room by the interior baffle for separating of establishing, what link up the water sucking mouth is water sucting cavity, and what link up water outlet is water chamber, and dividing plate is provided with the aperture that Diffuser is installed.Its improvements are: the described pump housing is connected with outer pump cover end face seal with a uncovered end, make the centrifugal pump pump chamber place pump housing inner chamber, uniform axial hole is linked up the water chamber of the pump housing on the interior pump cover end face, Diffuser is tightly connected between interior pump cover and dividing plate, the coaxial installation nozzle in Diffuser end that is positioned at water sucking mouth one end consists of jet pump structure, and the outlet port of Diffuser is in the inlet of impeller.
In the said structure, nozzle and Diffuser abutting end are provided with the threaded adjusting structure.
The present invention compared with prior art has following good effect:
1, jet pump and centrifugal pump organic assembling are simple in structure, easily make;
2, the water that the high pressure liquid stream of returning through nozzle helps to drive in the water sucting cavity enters Diffuser, realizes that self-priming time is short, and suction capacity is strong;
3, the outlet port of jet pump is in the inlet of impeller, and jet pump helps the centrifugal pump self-priming, reduces centrifugal pump shaft power, reduces support expense.
Description of drawings
Fig. 1 is structural profile schematic representation of the present invention.
Embodiment
The invention will be further described with reference to the accompanying drawings for the below.
Jet type self priming centrifugal pump shown in Figure 1, it is a kind of horizontally-arranged structure pump, comprises the pump housing 1, nozzle 2, Diffuser 3, impeller 4, interior pump cover 5, stator 6, outer pump cover 7, pump shaft 8, carriage 9 and motor 10.Supporting motor 10 output shaft end face direct connection carriages 9, pump shaft 8 and 10 coaxial connections of motor, impeller 4 location and installation are in pump shaft 8 ends, and impeller 4 both sides are cooperated by outer pump cover 7 and stator 6 and interior pump cover 5 respectively and consist of the centrifugal pump pump chamber structure.The described pump housing 1 is the prone position open hood type container, be provided with water sucking mouth 1.1 towards the exterior edge face upper semisection, the pump housing 1 end face is provided with water outlet 1.2, the pump housing 1 inner chamber is separated into two Room by the interior dividing plate 1.3 of establishing, what link up water sucking mouth 1.1 is water sucting cavity, what link up water outlet 1.2 is water chamber, and dividing plate 1.3 is provided with the aperture that Diffuser 3 is installed.The described pump housing 1 installs on the impeller and with outer pump cover 7 end face seals with a uncovered end cover and is connected, and makes the centrifugal pump pump chamber place the pump housing 1 inner chamber.Uniform axial hole 5.1 is linked up the pump housing 1 water chamber on interior pump cover 5 end faces, Diffuser 3 is tightly connected between interior pump cover 5 and dividing plate 1.3, the coaxial installation nozzle 2 in Diffuser end that is positioned at water sucking mouth one end consists of jet pump structure, and the outlet port of Diffuser 3 is in the inlet of impeller 4.Nozzle 2 is provided with the threaded adjusting structure with Diffuser 3 abutting ends, by adjusting the axial position of nozzle 2, to reach the self-priming optimum condition.
The present invention fills with water in starting the forward direction pump housing 1 water chamber, impeller 4 High Rotation Speeds after starting make the water supercharging of water chamber, and wherein a part is carried the water of pressing through at a high speed ejection of nozzle 2, and the pressure energy of water is changed into kinetic energy.High-velocity flow is by making water sucting cavity form certain negative pressure, air under siphonage in the water sucting cavity and water are brought in the lump in the Diffuser 3 by high-velocity flow and are mixed, gas-liquid mixed flows to when reaching Diffuser 3 outlet section, because making the kinetic transformation of gas-liquid mixed stream, the internal taper hole diffusion becomes pressure energy, this moment, the flow velocity of gas-liquid mixed stream reduced, pressure raises, after further being compressed, air in the pump housing 1, realizes gas-liquid separation, air is discharged through the water outlet 1.2 of the pump housing 1, remaining water is got back under pressure nozzle 2 and is again circulated, again the surplus air in the water sucting cavity is sucked and mix, the number of steps that repeats above-mentioned deaeration minute can realize self-priming.
Organic assembling jet pump of the present invention and centrifugal pump reach performance complement.The outlet port of jet pump is in the inlet of impeller, and jet pump helps the centrifugal pump self-priming, and the self-priming process is short, suction capacity is strong, also reduces centrifugal pump shaft power, realizes energy-saving and cost-reducing purpose.In addition, the present invention is integrated, and does not need to be equipped with in addition self-priming apparatus, saves support expense.
Claims (2)
1. jet type self priming centrifugal pump, it is a kind of horizontally-arranged structure pump, comprises the pump housing (1), nozzle (2), Diffuser (3), impeller (4), interior pump cover (5), stator (6), outer pump cover (7), pump shaft (8), carriage (9) and motor (10); Described motor (10) output shaft end face direct connection carriage (9), pump shaft (8) and coaxial connection of motor (10), impeller (4) location and installation is in pump shaft (8) end, and impeller (4) both sides are respectively by outer pump cover (7) and stator (6) and interior pump cover (5) cooperation formation centrifugal pump pump chamber structure; The described pump housing (1) is the prone position open hood type container, be provided with water sucking mouth (1.1) towards the exterior edge face upper semisection, the pump housing (1) end face is provided with water outlet (1.2), the pump housing (1) inner chamber is separated into two Room by the interior dividing plate (1.3) of establishing, what link up water sucking mouth (1.1) is water sucting cavity, what link up water outlet (1.2) is water chamber, and dividing plate (1.3) is provided with the aperture that Diffuser (3) is installed; It is characterized in that: the described pump housing (1) is connected with outer pump cover (7) end face seal with a uncovered end, make the centrifugal pump pump chamber place the pump housing (1) inner chamber, uniform axial hole (5.1) is linked up the water chamber of the pump housing (1) on interior pump cover (5) end face, Diffuser (3) is tightly connected between interior pump cover (5) and dividing plate (1.3), Diffuser (3) the coaxial installation nozzle in end (2) that is positioned at water sucking mouth (1.1) one ends consists of jet pump structure, and the outlet port of Diffuser (3) is in the inlet of impeller (4).
2. jet type self priming centrifugal pump according to claim 1, it is characterized in that: described nozzle (2) is provided with the threaded adjusting structure with Diffuser (3) section of cooperation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110308438 CN102322424B (en) | 2011-10-13 | 2011-10-13 | Jet self-sucking centrifugal water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110308438 CN102322424B (en) | 2011-10-13 | 2011-10-13 | Jet self-sucking centrifugal water pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102322424A CN102322424A (en) | 2012-01-18 |
| CN102322424B true CN102322424B (en) | 2013-03-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110308438 Active CN102322424B (en) | 2011-10-13 | 2011-10-13 | Jet self-sucking centrifugal water pump |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102878087A (en) * | 2012-09-18 | 2013-01-16 | 安徽天富泵阀有限公司 | Direct connection type starch pump |
| CN107061301A (en) * | 2017-05-22 | 2017-08-18 | 福建省农业机械化研究所(福建省机械科学研究院） | A kind of big-flow self-priming sprinkling irrigation pump of external fluidic device |
| CN109372760A (en) * | 2018-12-05 | 2019-02-22 | 江苏凯泉泵业制造有限公司 | A kind of multiinjector self priming pump |
| CN112539197B (en) * | 2020-12-03 | 2022-03-25 | 浦川流体设备(无锡)有限公司 | Full-automatic adjustable external injection self-priming pump |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4014567A1 (en) * | 1990-05-07 | 1991-11-14 | Pumpen & Verdichter Veb K | Centrifugal pump |
| EP0645541A1 (en) * | 1993-09-25 | 1995-03-29 | ASV Stübbe GmbH & Co. KG | Self-priming centrifugal pump |
| CN202348688U (en) * | 2011-10-13 | 2012-07-25 | 江苏万丰船用设备制造有限公司 | Jet type self-priming centrifugal pump |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011091809A1 (en) * | 2010-01-26 | 2011-08-04 | Gardena Manufacturing Gmbh | Garden pump arrangement |
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2011
- 2011-10-13 CN CN 201110308438 patent/CN102322424B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4014567A1 (en) * | 1990-05-07 | 1991-11-14 | Pumpen & Verdichter Veb K | Centrifugal pump |
| EP0645541A1 (en) * | 1993-09-25 | 1995-03-29 | ASV Stübbe GmbH & Co. KG | Self-priming centrifugal pump |
| CN202348688U (en) * | 2011-10-13 | 2012-07-25 | 江苏万丰船用设备制造有限公司 | Jet type self-priming centrifugal pump |
Also Published As
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| CN102322424A (en) | 2012-01-18 |
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