CN204025070U - Jetted self-priming device - Google Patents
Jetted self-priming device Download PDFInfo
- Publication number
- CN204025070U CN204025070U CN201420310194.0U CN201420310194U CN204025070U CN 204025070 U CN204025070 U CN 204025070U CN 201420310194 U CN201420310194 U CN 201420310194U CN 204025070 U CN204025070 U CN 204025070U
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- CN
- China
- Prior art keywords
- self
- priming
- pump
- jet injector
- centrifugal pump
- 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
- 229940090046 jet injector Drugs 0.000 claims abstract description 34
- 239000007788 liquid Substances 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 7
- 238000012423 maintenance Methods 0.000 abstract description 5
- 230000037452 priming Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000002360 explosive Substances 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000009837 dry grinding Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model provides a kind of jetted self-priming device, its major character is, comprise Jet injector, self-priming apparatus and centrifugal pump three parts, its technical characteristics is, centrifugal pump is driven by centrifugal pump motor, installs on the ground together with self-priming apparatus, and Jet injector is arranged in liquid container, bypass line is connected with the suction line of Jet injector, and Jet injector discharge tube is connected with self-priming apparatus entrance.Pump discharge pipeline is established pump discharge pipeline valve, and bypass line is established bypass line valve.Self-priming apparatus has jet pot type and two kinds of forms of jetted self-priming combined type.Its advantage is, floor space is little, and cost is low, and Applicable scope is wider; Improve pump suction head.Good stability, maintenance frequency is few, has reduced maintenance expenses.Without pump priming, operate more simple and reliable.Be applicable to super dark, high-temperature water, high temperature oil, the easy operating mode such as gasifying medium.
Description
Technical field
The utility model relates to a kind of novel jet flow self-priming apparatus, and particularly one divides flow medium as Jet injector power source taking centrifugal pump, realizes according to jet current principle the self-priming apparatus that medium sucts automatically.This device is applicable to super dark, high-temperature water, high temperature oil, the easy operating mode such as gasifying medium.
Background technique
At present the light oil such as C4, C5 because of vapor pressure very low, common self-priming pump suction head is subject to the restriction of local barometric pressure and the net positive suction head of pump own, cannot realize under the liquid of this kind of medium and putting on and the long shaft submerged pump of having to still use.Long shaft submerged pump impeller when starting is immersed in medium, thereby has and start easily, does not have exhaust and the problem of finding time, and does not need the advantage of the problem of considering suction lift.Its shortcoming is: 1, motor is on liquid level, and rotor part is under liquid level, and the long difficulty of processing that causes of axle is large, and pump shaft amplitude of fluctuation is amplified, and bearing life is short, and frequency of maintenance is high.2, axle is long, adopts multiple spot sliding bearing to support, once sliding bearing is lubricated bad, dry grinding easily produces spark.When medium is the inflammable and explosive media such as light sump oil, very easily ignite flammable explosive gas in tank, initiation fire, these several years Frequent Accidents especially, affect very large.Research and develop as early as possible a kind of safe long shaft submerged pump substitute products extremely urgent.Jet injector is a kind of fluid machinery, and it is a kind of equipment that utilizes the jet of working fluid to carry fluid.In Jet injector, there is no moving element, so that it has is simple in structure, reliable operation, without revealing, has suction capacity, easy processing and be convenient to the advantages such as comprehensive utilization.In a lot of technical fields, adopt jet pump technology can make whole technological process and equipment greatly simplify, and improve its functional reliability.Particularly, at high temperature, high pressure, vacuum, intense radiation and etc. under particular job condition, more demonstrate its unique superiority under water.Jet pump technology has been applied to the departments such as water conservancy, electric power, traffic, metallurgy, petrochemical industry, environmental protection, ocean development, geologic prospecting, nuclear energy uses, aviation and space flight at home and abroad at present.The power source of common Jet injector working liquid body is pressure tank, centrifugal pump and other type of pump or pressure piping, and the large cost of floor space is high, and its use is restricted.
Summary of the invention
The purpose of this utility model is the deficiency existing in above-mentioned technology, a kind of jetted self-priming device being made up of Jet injector, self-priming apparatus and centrifugal pump is provided, utilize the water of the part medium of pump discharge backflow can serve as the power of Jet injector, assist centrifugal pump that easy vaporized media is put on to ground.
The purpose of this utility model is achieved in that and comprises Jet injector, self-priming apparatus and centrifugal pump three parts, it is characterized in that Jet injector is made up of suction line, nozzle, trunnion, diffusing tube, pressure piping, discharge tube, centrifugal pump is driven by centrifugal pump motor, install together with self-priming apparatus on the ground, Jet injector is arranged in liquid container, bypass line is connected with the suction line of Jet injector, and Jet injector discharge tube is connected with self-priming apparatus entrance.Pump discharge pipeline is provided with pump discharge pipeline valve, and bypass line is provided with bypass line valve.
Centrifugal pump start before by self-priming apparatus to centrifugal pump pump priming, after starting, centrifugal pump distributes part medium to Jet injector from outlet, dividing flow medium is that working liquid body is introduced nozzle along pressure piping as the power source of Jet injector, at nozzle exit due to the viscous effect between jet and air, near air nozzle is taken away, make to form vacuum near nozzle, under external atmospheric pressure effect, being pumped liquid is drunk up from suction line, and together enter in trunnion in company with high speed operation liquid, in trunnion, after two bursts of liquid generation momentum transfers, enter diffusing tube, finally discharge and enter self-priming apparatus from discharge tube, thereby the means of transportation of medium is sucted to formula by the negative pressure of Ordinary Centrifugal Pumps and change Jet injector malleation propelling movement type into, avoid medium to suct in process because liquid level pressure decreased is vaporized, liquid tank level is excessively dark, centrifugal pump cannot suct the problem of medium.According to on-site actual situations, self-priming apparatus divides: two kinds of forms of jet pot type and jetted self-priming combined type.Wherein jet pot type is simple in structure, as long as spray can volume is greater than centrifugal pump suction line volume and can realizes self-priming, applied widely, needs manually to fill with tank while use first.Jetted self-priming combined type is to utilize self-priming machine to fill with tank to spray can, and spray can provides medium to centrifugal pump.This kind of self-priming apparatus floor space is little, and self-priming time is short.
?beneficial effect of the present invention: 1, jetted self-priming device sucts formula by the means of transportation of medium by the negative pressure of Ordinary Centrifugal Pumps and changes Jet injector malleation propelling movement type into, has avoided medium to suct in process and has vaporized because of liquid level pressure decreased, and centrifugal pump cannot suct medium; 2, Jet injector can replace the normal pressure tank adopting at present by the part water of outlet of centrifugal pump shunting, and centrifugal pump and other type of pump or pressure piping do power source, and floor space is little, and cost is low, and Applicable scope is wider; 3, Jet injector fed sheet of a media under liquid, to centrifugal pump, makes the suction head of whole equipment become the suction head of Jet injector lift+centrifugal pump, has made up the shortcoming of Ordinary Centrifugal Pumps suction head deficiency, has widened the using scope of Ordinary Centrifugal Pumps; 4, Jet injector is that pipeline is connected with the Placement of centrifugal pump, and difficulty of processing reduces greatly compared with long shaft submerged pump, and stabilization of equipment performance improves, and maintenance frequency is few, has reduced maintenance expenses.5, Jet injector is simple in structure, without the rotary component such as bearing, sealing, manufactures simplyr, has stopped other forms of Under Water Pumps bearing completely and has damaged because of dry grinding, thereby even produced the ignite possibility of inflammable and explosive medium of spark; 6, before centrifugal pump, increase self-priming apparatus, without pump priming, operate more simple and reliable.
?brief description of the drawings:
Fig. 1 is the utility model Jet injector structural drawing
Fig. 2 is the utility model jet pot type jetted self-priming apparatus structure schematic diagram
Fig. 3 is the utility model jetted self-priming Combined jet self-priming apparatus structural representation.
Embodiment:
Below in conjunction with accompanying drawing, the utility model is described further:
From accompanying drawing 1-3, Jet injector is made up of suction line 1, nozzle 2, trunnion 3, diffusing tube 4, pressure piping 5, discharge tube 6.Centrifugal pump is driven by centrifugal pump motor, installs on the ground together with self-priming apparatus, and self-priming apparatus divides jet pot type 9 and 13 two kinds of forms of jetted self-priming combined type.Jet injector 7 is arranged in liquid container.Bypass line 8 is connected with outlet of centrifugal pump pipeline with the suction line 1 of Jet injector 7, and Jet injector discharge tube 6 is connected with self-priming apparatus entrance.Pump discharge pipeline is provided with pump discharge pipeline valve 10, and bypass line 8 is provided with 11, two valves of bypass line valve and is used for opening or closing outlet line and bypass line.
Claims (2)
1. a jetted self-priming device, comprise Jet injector, self-priming apparatus and centrifugal pump three parts, it is characterized in that Jet injector is made up of suction line, nozzle, trunnion, diffusing tube, pressure piping, discharge tube, centrifugal pump is driven by centrifugal pump motor, install together with self-priming apparatus on the ground, Jet injector is arranged in liquid container, bypass line is connected with the suction line of Jet injector, Jet injector discharge tube is connected with self-priming apparatus entrance, pump discharge pipeline is provided with pump discharge pipeline valve, and bypass line is provided with bypass line valve.
2. jetted self-priming device according to claim 1, is characterized in that self-priming apparatus divides jet pot type and two kinds of forms of jetted self-priming combined type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420310194.0U CN204025070U (en) | 2014-06-12 | 2014-06-12 | Jetted self-priming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420310194.0U CN204025070U (en) | 2014-06-12 | 2014-06-12 | Jetted self-priming device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204025070U true CN204025070U (en) | 2014-12-17 |
Family
ID=52064942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420310194.0U Expired - Lifetime CN204025070U (en) | 2014-06-12 | 2014-06-12 | Jetted self-priming device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204025070U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106224249A (en) * | 2016-09-09 | 2016-12-14 | 浙江新控泵业有限公司 | Low noise self-priming combination pump |
| CN106481568A (en) * | 2016-12-13 | 2017-03-08 | 浙江新控泵业有限公司 | Self-priming shields combination pump |
| CN110469542A (en) * | 2019-08-16 | 2019-11-19 | 中国航发北京航科发动机控制系统科技有限公司 | A kind of fuel inlet device improving centrifugal pump suction capacity |
| CN115370581A (en) * | 2022-06-09 | 2022-11-22 | 利欧集团浙江泵业有限公司 | Jet pump |
-
2014
- 2014-06-12 CN CN201420310194.0U patent/CN204025070U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106224249A (en) * | 2016-09-09 | 2016-12-14 | 浙江新控泵业有限公司 | Low noise self-priming combination pump |
| CN106481568A (en) * | 2016-12-13 | 2017-03-08 | 浙江新控泵业有限公司 | Self-priming shields combination pump |
| CN106481568B (en) * | 2016-12-13 | 2019-06-18 | 浙江新控泵业有限公司 | Self-priming shields combination pump |
| CN110469542A (en) * | 2019-08-16 | 2019-11-19 | 中国航发北京航科发动机控制系统科技有限公司 | A kind of fuel inlet device improving centrifugal pump suction capacity |
| CN115370581A (en) * | 2022-06-09 | 2022-11-22 | 利欧集团浙江泵业有限公司 | Jet pump |
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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 |
Granted publication date: 20141217 |