CN105179255A - Self-priming jet pump - Google Patents
Self-priming jet pump Download PDFInfo
- Publication number
- CN105179255A CN105179255A CN201510678097.6A CN201510678097A CN105179255A CN 105179255 A CN105179255 A CN 105179255A CN 201510678097 A CN201510678097 A CN 201510678097A CN 105179255 A CN105179255 A CN 105179255A
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- CN
- China
- Prior art keywords
- self
- pump
- impeller
- motor
- pump housing
- 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.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 54
- 239000007788 liquid Substances 0.000 claims description 25
- 238000007789 sealing Methods 0.000 claims description 16
- 238000002347 injection Methods 0.000 claims description 14
- 239000007924 injection Substances 0.000 claims description 14
- 230000001012 protector Effects 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 10
- 239000012530 fluid Substances 0.000 description 8
- 239000000203 mixture Substances 0.000 description 7
- 238000009434 installation Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000000926 separation method Methods 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 239000010865 sewage Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000012208 gear oil Substances 0.000 description 1
- 229940090046 jet injector Drugs 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000037452 priming Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a self-priming jet pump. The self-priming jet pump comprises a mounting base, a motor and a pump body; the mounting base is arranged under the motor; the motor is fixedly connected with the pump body; a spindle is arranged on one side of the motor; the motor is in transmission connection with the spindle; an impeller is arranged in the pump body and in engagement connection with the spindle; an oil seal seat and a guide blade are arranged on the two sides of the impeller, respectively; the oil seal seat is fixedly connected with the pump body; a mechanical seal is arranged in the oil seal seat; the guide blade is fixedly connected with the impeller; a locking nut is arranged at the tail end of the spindle and in threaded connection with the spindle; a water inlet is formed at the front end of the pump body; an ejector is arranged at the front end of the guide blade and communicated with the water inlet. The self-priming jet pump is convenient and fast to mount, high in water discharge pressure, good in self-priming performance, compact in structure, few in movable parts, and easy to maintain and repair.
Description
Technical field
The present invention relates to a kind of pump housing technical field, particularly relate to a kind of self-suction injection pump.
Background technique
The working principle of self-priming pump is: first in pump case, fill water (or in pump case, self has water) before starting mode of pump.After starting, impeller High Rotation Speed makes the current direction volute in impeller conduit, and at this moment enter interruption-forming vacuum, make to open into water non-return flap, the air in suction pipe enters in pump, and arrives outer rim through impeller conduit.Self-priming pump belongs to self priming centrifugal pump, it have compact structure, easy to operate, operate steadily, safeguard easily, efficiency is high, the life-span is long, and has the advantages such as stronger suction capacity.Pipeline does not need to install bottom valve, only need ensure to contain in the pump housing quantitatively to draw liquid before work.Different liquids can adopt unlike material self-priming pump.
The structure type of self-priming pump is a lot, and wherein pump for liquid salts, vacuum pump, Under Water Pumps, metering pump, gear pump, anti-corrosive pump, acid-proof pump, fire water pump flow to sense of rotation.Then the water come with right backwater hole stream converges, and flows along spiral case.Because liquid constantly impacts leaf grating in spiral case, constantly smashed by impeller, just with the mixing of air strong agitation, generate air-water mixture, and constantly flowing causes air water not to be separated.Mixture is peeled off by cut water at volute outlet, enters separation chamber along short tube.Be separated at separation indoor air, drained by outer pipe, and water still flow to impeller outer edge through left and right backwater hole, and mix mutually with suction pipe air.Iterative cycles like this, drains the air in suction line gradually, makes water enter in pump, completes self-priming process.Pollution discharge pump self-priming pump oil pump diaphragm pump screw pump gear oil pump pump is identical, and its difference just backwater does not flow to impeller outer edge, and flows to impeller eye.Internal-mixing self-priming pump, when starting, must be opened the reflux valve of impeller front lower place, make liquid stream in pump get back to impeller eye.The air that water comes with suction pipe under the effect of impeller high speed rotating mixes mutually, forms air-water mixture and drains into separation chamber.Here air discharge and water turns back to impeller eye from reflux valve.So repeatedly carry out, until air drains, suct the self-priming pump that water carrys out internal-mixing, working principle and external mixture type self-priming.
The suction lift of self-priming pump, relevant with the factor such as revolution, separation chamber's liquid level height of seal clearance, pump before impeller.Before impeller, seal clearance is less, and suction lift is larger, is generally taken as 0.3 ~ 0.5 millimeter; When increasing in gap, except suction lift declines, lift of pump, efficiency all reduce.The suction lift of pump increases with the increase of the peripheral velocity u2 of impeller, but during to maximum suction lift, revolution increases and suction lift just no longer adds, and now just shortens self-priming time; When revolution declines, suction lift is then along with decline.When other condition is constant, suction lift also increases (but can not exceed the best water storage height of separation chamber) along with the increase of water storage height.In order to make mixing wastewater with air better in self-priming pump, the blade of impeller must be less, and the pitch of leaf grating is increased; And half-opened impeller (or impeller conduit wider impeller) should be adopted, be more convenient for backwater like this and in depth inject in impeller leaf grating.
Jet pump is a kind of fluid driven pump.Fluid driven pump does not have mechanical transmission and machine work component, and it does power source to carry low-yield liquid by the energy of another kind of working fluid, is used for having good safety when aspirating inflammable and explosive material.Liquid-jet vacuum pump utilizes to extract gas in container to obtain the equipment of vacuum, also known as jet vacuum pump by the high-speed jet of nozzle.In Chemical Manufacture, often to produce for the purpose of vacuum.Industrial jet pump, also known as Jet injector and sparger.Utilize the jet-action of pressurized working fluid to carry the pump of fluid.Be made up of nozzle, mixing chamber and enlarged tube etc.For making for the purpose of smooth operation, a vacuum chamber (also claiming suction chamber) is set at trunnion place; In order to enable two kinds of fluids fully mix, after vacuum chamber, there is a mixing chamber.During operation, working fluid is sprayed by nozzle with very high speed, forms low pressure at vacuum chamber, makes to be transferred liquid and sucks vacuum chamber, then enter mixing chamber.In mixing chamber, high-octane working fluid and the low-energy liquid that is transferred fully mix, and energy is exchanged mutually, and speed is also consistent gradually, and enter explosion chamber from trunnion, speed slows down, and static pressure is gone up, and reaches the object of conveying liquid.
Current existing self-suction injection pump is less, complex structure, and install inconvenient, structure is more, safeguards inconvenient.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of quick and easy for installation, and discharge pressure is high, and self-priming performance is good, compact structure, and movable part is few, is easy to the self-suction injection pump safeguarded and keep in repair.
For solving the problem, the present invention adopts following technological scheme:
A kind of self-suction injection pump, comprise mounting base, motor and the pump housing, described mounting base is located at below motor, described motor is fixedly connected with the pump housing, described motor side is provided with main shaft, described motor is connected with spindle, impeller is provided with in the described pump housing, described impeller holds with main shaft and is connected, described impeller both sides are respectively arranged with oil sealing base and stator, the liquid jetting device arranged is not by various radiation, electromagnetic impact, and have anticorrosive, antidetonation, the feature such as antiknock and high-low temperature resistant, be suitable for applying under circumstances, keep movable part few, be easy to safeguard and maintenance, prevent the solid blocking water outlets such as the silt carried in sewage, oil sealing base and mechanical seal keep good sealing effect, self-priming performance is good, compact structure, stator on impeller can keep quick and easy for installation, discharge pressure is high, self-priming performance is good, locking nut keeps blade wheel structure to stablize, crossing heat overload protector keeps motor safe and reliable to operation, described oil sealing base is fixedly connected with the pump housing, mechanical seal is provided with in described oil sealing base, described stator is fixedly connected with impeller, described main shaft end is provided with locking nut, described locking nut is connected with spindle thread, described pump housing front end is provided with water intake, described stator front end is provided with liquid jetting device, described liquid jetting device is communicated with water intake, described liquid jetting device and water intake joint are provided with seal ring, the described pump housing is provided with water outlet and water filling plug screw, described water filling plug screw is threaded with the pump housing, described motor was provided with heat overload protector, described heat overload protector and motor are excessively electrically connected.
Further, in described water intake, be provided with filter screen, can the liquid entered tentatively be filtered.
Further, described seal ring is O RunddichtringO, keeps good sealing effect, convenient installation.
Further, described impeller is that hollow is arranged, and reduces weight, promotes rotating speed.
Further, described front-end of spindle is provided with bearing, keeps main shaft stable.
Further, described bearing is connected with main axis, convenient installation.
Further, described water intake diameter is greater than water outlet diameter, is lifted out the flow velocity at the mouth of a river.
The invention has the beneficial effects as follows: the liquid jetting device of setting is not by various radiation, electromagnetic impact, and have anticorrosive, antidetonation, the feature such as antiknock and high-low temperature resistant, be suitable for applying under circumstances, keep movable part few, be easy to safeguard and maintenance, prevent the solid blocking water outlets such as the silt carried in sewage, oil sealing base and mechanical seal keep good sealing effect, self-priming performance is good, compact structure, stator on impeller can keep quick and easy for installation, discharge pressure is high, self-priming performance is good, locking nut keeps blade wheel structure to stablize, crossing heat overload protector keeps motor safe and reliable to operation.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural drawing of a kind of self-suction injection pump of the present invention.
Embodiment
Consult shown in Fig. 1, a kind of self-suction injection pump, comprise mounting base 1, motor 2 and the pump housing 3, described mounting base 1 is located at below motor 2, described motor 2 is fixedly connected with the pump housing 3, described motor 2 side is provided with main shaft 4, described motor 2 is in transmission connection with main shaft 4, impeller 5 is provided with in the described pump housing 3, described impeller 5 holds with main shaft 4 and is connected, described impeller 5 both sides are respectively arranged with oil sealing base 6 and stator 7, described oil sealing base 6 is fixedly connected with the pump housing 3, mechanical seal 8 is provided with in described oil sealing base 6, described stator 7 is fixedly connected with impeller 5, described main shaft 4 end is provided with locking nut 9, described locking nut 9 is threaded with main shaft 4, the described pump housing 3 front end is provided with water intake 10, described stator 7 front end is provided with liquid jetting device 11, described liquid jetting device 11 is communicated with water intake 10, described liquid jetting device 11 is provided with seal ring 12 with water intake 10 joint, the described pump housing 3 is provided with water outlet 13 and water filling plug screw 14, described water filling plug screw 14 is threaded with the pump housing 3, described motor 2 was provided with heat overload protector 15, described heat overload protector 15 of crossing is electrically connected with motor 2.
Filter screen 16 is provided with in described water intake 10.
Described seal ring 12 is O RunddichtringO.
Described impeller 5 is arranged in hollow.
Described main shaft 4 front end is provided with bearing 17.
Described bearing 17 is rotationally connected with main shaft 4.
Described water intake 10 diameter is greater than water outlet 13 diameter.
In use, mounting base 1 is arranged on working zone, open water filling plug screw 14 toward water filling in the pump housing 3, the pump housing 3 that starting electrical machinery 2 can be possesses self-absorption function, stator 7 in main shaft 4 impeller 5 rotates, liquid is sprayed into from liquid jetting device 11 from the pump housing fast by water intake 10, discharges through water outlet 13.
The invention has the beneficial effects as follows: the liquid jetting device of setting is not by various radiation, electromagnetic impact, and have anticorrosive, antidetonation, the feature such as antiknock and high-low temperature resistant, be suitable for applying under circumstances, keep movable part few, be easy to safeguard and maintenance, prevent the solid blocking water outlets such as the silt carried in sewage, oil sealing base and mechanical seal keep good sealing effect, self-priming performance is good, compact structure, stator on impeller can keep quick and easy for installation, discharge pressure is high, self-priming performance is good, locking nut keeps blade wheel structure to stablize, crossing heat overload protector keeps motor safe and reliable to operation.
The above; be only the specific embodiment of the present invention; but protection scope of the present invention is not limited thereto; any change of expecting without creative work or replacement; all should be encompassed within protection scope of the present invention; therefore, the protection domain that protection scope of the present invention should limit with claims is as the criterion.
Claims (7)
1. a self-suction injection pump, it is characterized in that: comprise mounting base, motor and the pump housing, described mounting base is located at below motor, described motor is fixedly connected with the pump housing, described motor side is provided with main shaft, described motor is connected with spindle, impeller is provided with in the described pump housing, described impeller holds with main shaft and is connected, described impeller both sides are respectively arranged with oil sealing base and stator, described oil sealing base is fixedly connected with the pump housing, mechanical seal is provided with in described oil sealing base, described stator is fixedly connected with impeller, described main shaft end is provided with locking nut, described locking nut is connected with spindle thread, described pump housing front end is provided with water intake, described stator front end is provided with liquid jetting device, described liquid jetting device is communicated with water intake, described liquid jetting device and water intake joint are provided with seal ring, the described pump housing is provided with water outlet and water filling plug screw, described water filling plug screw is threaded with the pump housing, described motor was provided with heat overload protector, described heat overload protector and motor are excessively electrically connected.
2. self-suction injection pump as claimed in claim 1, is characterized in that: be provided with filter screen in described water intake.
3. self-suction injection pump as claimed in claim 2, is characterized in that: described seal ring is O RunddichtringO.
4. self-suction injection pump as claimed in claim 3, is characterized in that: described impeller is that hollow is arranged.
5. self-suction injection pump as claimed in claim 4, is characterized in that: described front-end of spindle is provided with bearing.
6. self-suction injection pump as claimed in claim 5, is characterized in that: described bearing is connected with main axis.
7. self-suction injection pump as claimed in claim 6, is characterized in that: described water intake diameter is greater than water outlet diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510678097.6A CN105179255A (en) | 2015-10-20 | 2015-10-20 | Self-priming jet pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510678097.6A CN105179255A (en) | 2015-10-20 | 2015-10-20 | Self-priming jet pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105179255A true CN105179255A (en) | 2015-12-23 |
Family
ID=54901589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510678097.6A Pending CN105179255A (en) | 2015-10-20 | 2015-10-20 | Self-priming jet pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105179255A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108869316A (en) * | 2018-08-02 | 2018-11-23 | 榆林学院 | A kind of internal-mixing self priming pump with axial-flow type fluidic device |
| CN110953162A (en) * | 2018-09-26 | 2020-04-03 | 苏州轩扬泵业科技有限公司 | Self-priming electric pump |
| CN112555137A (en) * | 2020-12-14 | 2021-03-26 | 宁波君禾智能科技有限公司 | Water pump control system |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2700338A (en) * | 1950-11-15 | 1955-01-25 | Barnes Mfg Co | Shallow well centrifugal pump with jet |
| CN2557728Y (en) * | 2002-07-22 | 2003-06-25 | 巴贤奎 | Submerged self-suction two-purpose water pump |
| CN2581729Y (en) * | 2002-08-14 | 2003-10-22 | 广东凌霄泵业股份有限公司 | Device with overheat protection |
| CN201521456U (en) * | 2009-11-05 | 2010-07-07 | 钟新军 | Spraying/self-priming water pump |
| CN102562604A (en) * | 2011-12-22 | 2012-07-11 | 安徽江南泵阀有限公司 | High-performance strong-corrosion-resistant self-sucking pump |
| CN204082563U (en) * | 2014-08-08 | 2015-01-07 | 陕西航天动力高科技股份有限公司 | A kind of high anti-cavitation fast self-priming oil pump group |
| CN204402909U (en) * | 2014-11-14 | 2015-06-17 | 台州大步泵业有限公司 | A kind of injection self-priming pump |
| CN205207202U (en) * | 2015-10-20 | 2016-05-04 | 芜湖环球汽车配件有限公司 | Self sucking spray pump |
-
2015
- 2015-10-20 CN CN201510678097.6A patent/CN105179255A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2700338A (en) * | 1950-11-15 | 1955-01-25 | Barnes Mfg Co | Shallow well centrifugal pump with jet |
| CN2557728Y (en) * | 2002-07-22 | 2003-06-25 | 巴贤奎 | Submerged self-suction two-purpose water pump |
| CN2581729Y (en) * | 2002-08-14 | 2003-10-22 | 广东凌霄泵业股份有限公司 | Device with overheat protection |
| CN201521456U (en) * | 2009-11-05 | 2010-07-07 | 钟新军 | Spraying/self-priming water pump |
| CN102562604A (en) * | 2011-12-22 | 2012-07-11 | 安徽江南泵阀有限公司 | High-performance strong-corrosion-resistant self-sucking pump |
| CN204082563U (en) * | 2014-08-08 | 2015-01-07 | 陕西航天动力高科技股份有限公司 | A kind of high anti-cavitation fast self-priming oil pump group |
| CN204402909U (en) * | 2014-11-14 | 2015-06-17 | 台州大步泵业有限公司 | A kind of injection self-priming pump |
| CN205207202U (en) * | 2015-10-20 | 2016-05-04 | 芜湖环球汽车配件有限公司 | Self sucking spray pump |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108869316A (en) * | 2018-08-02 | 2018-11-23 | 榆林学院 | A kind of internal-mixing self priming pump with axial-flow type fluidic device |
| CN108869316B (en) * | 2018-08-02 | 2023-09-22 | 榆林学院 | Internal mixing self-priming pump with axial-flow type jet device |
| CN110953162A (en) * | 2018-09-26 | 2020-04-03 | 苏州轩扬泵业科技有限公司 | Self-priming electric pump |
| CN112555137A (en) * | 2020-12-14 | 2021-03-26 | 宁波君禾智能科技有限公司 | Water pump control system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151223 |
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| RJ01 | Rejection of invention patent application after publication |