CN202348688U - Jet type self-priming centrifugal pump - Google Patents
Jet type self-priming centrifugal pump Download PDFInfo
- Publication number
- CN202348688U CN202348688U CN201120387230XU CN201120387230U CN202348688U CN 202348688 U CN202348688 U CN 202348688U CN 201120387230X U CN201120387230X U CN 201120387230XU CN 201120387230 U CN201120387230 U CN 201120387230U CN 202348688 U CN202348688 U CN 202348688U
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- China
- Prior art keywords
- pump
- water
- diffuser
- priming
- cover
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- 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.)
- Withdrawn - After Issue
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Abstract
The utility model discloses a jet type self-priming centrifugal pump which comprises a pump body, a spray nozzle, a diffuser, an impeller, an inner pump cover, a guide vane, 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 pump shaft end; and the outer pump cover, the guide vane and the inner pump cover are matched on two sides of the impeller to form a pump chamber structure of the centrifugal pump. The pump body is connected with the outer pump cover through an open end in a sealing way, so that the pump chamber of the centrifugal pump is arranged in the pump body; axial through holes are uniformly distributed in the end surface of the inner pump cover and are communicated with a water draining chamber of the pump body; the diffuser is connected between the inner pump cover and a separation board in a sealing way; and the spray nozzle is coaxially arranged at the end part of the diffuser positioned at one end of a water suction port to form a jet pump structure. The jet pump assists in self priming of the centrifugal pump, and thus the self-priming time is short and the self-priming capability is strong. The jet type self-priming centrifugal pump disclosed by the utility model is of an integrated structure and is especially suitable for being used as a marine pump; and no self-priming device is arranged, so that the mating expenses are saved.
Description
Technical field
The utility model relates to a kind of water pump structure, and specifically, the utility model relates to a kind of jet-type self-priming centrifugal water pump.
Background technique
Centrifugal water pump belongs to main flow pump product, and is extensively supporting in conventional water-carriage system.From structure centrifugal pump suction capacity itself very a little less than, usually at the effect of additional self-priming apparatus realization self-priming down.The existing supporting self-priming apparatus of centrifugal pump has multiple structural type; Wherein structure the most simply is a built-in return port between pump housing water outlet and water sucking mouth; Centrifugal water pump starts the MEDIA FLOW of back impeller output and is shunted a part to the water sucking mouth through return port; 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 through sacrificing pump efficiency.The structure of positive displacement retaining self-priming apparatus is equally also very simple, but volume is bigger, and it is supporting to be not suitable for boats and ships.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 match power thus, increases supporting cost.
The model utility content
The utility model is primarily aimed at the existing technology deficiency, 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 utility model is realized technical goal through following technical proposals.
Jet-type self-priming centrifugal water 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.Said 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 pump cover cooperation constituted the centrifugal pump pump chamber structure in the impeller both sides were reached by outer pump cover and stator respectively.The said pump housing is the prone position open hood type container, and upper semisection is provided with the water sucking mouth towards the exterior edge face, and pump housing end face is provided with water outlet; Pump housing inner chamber is separated into two Room by the interior dividing plate 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 said 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; Be uniformly distributed with axial hole on the interior pump cover end face and link up the water chamber of the pump housing; The Diffuser that between interior pump cover and dividing plate, is tightly connected, the coaxial installation nozzle in Diffuser end that is positioned at water sucking mouth one end constitutes 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 utility model compared with prior art has following good effect:
1, jet pump and centrifugal pump organic assembling are simple in structure, are prone to make;
2, the water that the high pressure liquid stream of returning through nozzle helps to drive in the water sucting cavity gets into 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 the utility model structural profile schematic representation.
Embodiment
According to accompanying drawing the utility model is described further below.
Jet-type self-priming centrifugal water 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 constitute the centrifugal pump pump chamber structure by outer pump cover 7 and stator 6 and 5 cooperations of interior pump cover respectively.The said pump housing 1 is the prone position open hood type container; Upper semisection is provided with water sucking mouth 1.1 towards the exterior edge face; The pump housing 1 end face is provided with water outlet 1.2, and the pump housing 1 inner chamber is separated into two Room by the interior dividing plate 1.3 of establishing, and 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 said 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.Be uniformly distributed with axial hole 5.1 on interior pump cover 5 end faces and link up the pump housing 1 water chamber; 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 constitutes 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, through the axial position of adjustment nozzle 2, to reach the self-priming optimum condition.
The utility model is fills with water in starting the forward direction pump housing 1 water chamber, starts back impeller 4 high speed rotating, makes the water supercharging of water chamber, and wherein a part is carried the water of pressing through nozzle 2 ejection at a high speed, and the pressure of water can be changed into kinetic energy.High-velocity flow forms certain negative pressure through making water sucting cavity, and air under siphonage in the water sucting cavity and water are brought in the lump in the Diffuser 3 by high-velocity flow and mixed, and gas-liquid mixed flows to when reaching Diffuser 3 outlet sections; Because of making the kinetic energy of gas-liquid mixed stream, the internal taper hole diffusion changes into the pressure ability; This moment, the flow velocity of gas-liquid mixed stream reduced, and pressure raises, and air is further compressed the back and 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 to nozzle 2 under pressure and is circulated once more, again the surplus air in the water sucting cavity is sucked and mixes, and the number of steps that repeats above-mentioned deaeration minute can realize self-priming.
The utility model organic assembling jet pump 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 utility model 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 water 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); Said 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 said pump housing (1) is the prone position open hood type container; Upper semisection is provided with water sucking mouth (1.1) towards the exterior edge face; The pump housing (1) end face is provided with water outlet (1.2), and the pump housing (1) inner chamber is separated into two Room by the interior dividing plate (1.3) of establishing, and 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 said 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; Be uniformly distributed with axial hole (5.1) on interior pump cover (5) end face and link up the water chamber of the pump housing (1); 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 constitutes jet pump structure, and the outlet port of Diffuser (3) is in the inlet of impeller (4).
2. jet-type self-priming centrifugal water pump according to claim 1 is characterized in that: said nozzle (2) is provided with the threaded adjusting structure with Diffuser (3) abutting end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120387230XU CN202348688U (en) | 2011-10-13 | 2011-10-13 | Jet type self-priming centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120387230XU CN202348688U (en) | 2011-10-13 | 2011-10-13 | Jet type self-priming centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202348688U true CN202348688U (en) | 2012-07-25 |
Family
ID=46537696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120387230XU Withdrawn - After Issue CN202348688U (en) | 2011-10-13 | 2011-10-13 | Jet type self-priming centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202348688U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102322424A (en) * | 2011-10-13 | 2012-01-18 | 江苏万丰船用设备制造有限公司 | Jet self-sucking centrifugal water pump |
| CN103711700A (en) * | 2013-12-25 | 2014-04-09 | 江苏振华泵业制造有限公司 | Injection type self-absorption crushing centrifugal pump |
| CN107676271A (en) * | 2017-11-10 | 2018-02-09 | 利欧集团浙江泵业有限公司 | Type variable electric pump |
| CN107806420A (en) * | 2017-10-19 | 2018-03-16 | 项达章 | Autocontrol self-priming centrifugal pump peculiar to vessel |
| CN114992133A (en) * | 2022-06-09 | 2022-09-02 | 宁波君禾智能科技有限公司 | Self-suction type injection pump |
-
2011
- 2011-10-13 CN CN201120387230XU patent/CN202348688U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102322424A (en) * | 2011-10-13 | 2012-01-18 | 江苏万丰船用设备制造有限公司 | Jet self-sucking centrifugal water pump |
| CN102322424B (en) * | 2011-10-13 | 2013-03-06 | 江苏万丰船用设备制造有限公司 | Jet self-sucking centrifugal water pump |
| CN103711700A (en) * | 2013-12-25 | 2014-04-09 | 江苏振华泵业制造有限公司 | Injection type self-absorption crushing centrifugal pump |
| CN107806420A (en) * | 2017-10-19 | 2018-03-16 | 项达章 | Autocontrol self-priming centrifugal pump peculiar to vessel |
| CN107676271A (en) * | 2017-11-10 | 2018-02-09 | 利欧集团浙江泵业有限公司 | Type variable electric pump |
| CN114992133A (en) * | 2022-06-09 | 2022-09-02 | 宁波君禾智能科技有限公司 | Self-suction type injection pump |
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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: 20120725 Effective date of abandoning: 20130306 |
|
| RGAV | Abandon patent right to avoid regrant |