CN208236668U - A kind of novel high-efficiency and energy-saving self priming pump - Google Patents
A kind of novel high-efficiency and energy-saving self priming pump Download PDFInfo
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- CN208236668U CN208236668U CN201820639341.7U CN201820639341U CN208236668U CN 208236668 U CN208236668 U CN 208236668U CN 201820639341 U CN201820639341 U CN 201820639341U CN 208236668 U CN208236668 U CN 208236668U
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- cylinder
- pump
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- separation chamber
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Abstract
The utility model belongs to self-priming pump technical field, and in particular to a kind of novel high-efficiency and energy-saving self priming pump.Including the pump housing, the middle upper end of the pump housing is provided with cylinder, pump shaft is installed in cylinder, the connecting place of pump shaft and cylinder is provided with mechanical seal, and one end of pump shaft is provided with impeller, and the other end is connected with motor, the side of cylinder is equipped with suction inlet, the outlet of cylinder connects gas-liquid separation chamber by discharge outlet bend pipe, and gas-liquid separation chamber is connected to cylinder by return pipe, and the top of gas-liquid separation chamber is equipped with check-valves.The utility model structure is simple, implements together in combination with pipe-line system, intermediate without sensor, without automatic control device, reduces use cost；In addition accuracy rate is high, and failure rate is low, while fluidic layout meets the requirement of centrifugal pump, energy-saving effect with higher；The connecting place of the pump shaft and cylinder is provided with negative pressure booster formula mechanical seal, greatly improves the sealing performance of pump shaft, and then effective guarantee the utility model is safely and steadily run.
Description
Technical field
The utility model belongs to self-priming pump technical field, and in particular to a kind of novel high-efficiency and energy-saving self priming pump is suitable for stone
It is used on oily, chemical industry every profession and trade requirement self-priming pump.
Background technique
It is well known that being put under previous petroleum chemical enterprise refinery device liquid mainly using long shaft submerged pump, submersible sewage pump, without sealing
Pump is put under the liquid such as self priming pump and strong self-priming pump, turbine type self priming pump, structural principle, advantage and disadvantage are as follows:
One, strong self-priming pumps: primary structure principle: (1) lengthening centrifugal pump shaft, drives configuration in bearing by itself pump shaft
Suction-exhaust mechanism at case, with plastic flexible pipe by suction-exhaust mechanism and pump suction pipe connection；(2) power on, suction-exhaust mechanism
Gas in suction line and pump case is discharged, medium sucks pump chamber, then suction-exhaust mechanism and high-speed rotating pump shaft are detached from, and makes it
Stop suction and discharge, adjusts outlet valve, make pump operation.
The problem of operation process: (1) suction and discharge system failure rate is high.Since bearing housing attached suction-exhaust mechanism
Load, bearing axle box bearing and suction and discharge transmission gear very rapid wear, frequent repair and replacement；
(2) it inhales vacuum to start to be no medium in the pump housing, the dry rotation in machine sealing end face often results in dry friction damage, such as with filling out
After material sealing dry grinding, gap becomes larger, and gas leakage vacuumizes frequent failure；
(3) suction-exhaust mechanism gear needs manual gear clutch, inconvenient, beats tooth phenomenon when gear clutch frequent occurrence, easily
Spark is generated, there are security risks；
(4) medium is often inhaled into suction-exhaust mechanism, causes water spray phenomenon；
(5) structure is complicated, dismounts inconvenient maintenance；Nonstandard pump, maintenance interchangeability are poor；
(6) scene needs people to guard, and the degree of automation is poor.
Two, non-sealing self-sucking pump: primary structure principle: being equipped with gas-liquid separation chamber in pump case, before starting by the pump housing and its
Medium is filled in the fluid reservoir of lower section, and by the continuous gas-liquid delivery separation of impeller and reflux after starting, suction line air is taken out
It walks, achievees the purpose that medium sucting introducing.
The problem of turning over journey: (1) self-priming performance reliability is low, and especially medium has frequent self-priming when impurity to fail,
Pump startup does not show liquid；
(2) efficiency of pump is low, and there are hydraulic loss and return loss, hydraulic performances to fall behind for itself, and energy consumption is big；
(3) suction capacity is poor, and maximum sucts 4.5m；
(4) inlet air control valve often fails, and medium siphon after termination of pumping is caused to flow backwards, then self-priming fails when this starting,
Frequently maintenance；
(5) liquid is easy to overflow from accessory vane shaft seal in pumping when stopping transport；
(6) it is not suitable for winter outdoor work；
(7) people is needed to guard, the degree of automation is low.
Three, interior reflux self priming pump (also referred to as vapor and liquid mixed self priming pump) primary structure principle: designing in the pump housing has
Pump is filled medium before starting by gas-liquid separation chamber, defeated, separation and reflux is constantly mixed by impeller after starting, by pump suction pipe
Space vacuumizes, and achievees the purpose that medium sucts.
The problem of operation process: (1) separation chamber's fluid return ports are blocked vulnerable to impurity in the pump housing, are often resulted in certainly
Inhale failure；
(2) efficiency of pump is low, and there are hydraulic losses and return loss；
(3) self-priming time is longer；
(4) self-priming performance reliable rows are not high, and suction capacity is poor；
(5) winter outdoor work is not suitable for；
(6) people is needed to guard, automation Chengdu is not high.
Utility model content
The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a kind of novel high-efficiency and energy-saving
Self priming pump improves on the basis of conventional centrifugal pump and vertical type non-sealed self-controlling self-priming pump, quasi- without automatic control device
True rate is high, and failure rate is low, while fluidic layout meets the requirement of centrifugal pump, energy-saving effect with higher.
The technical solution that this patent solves above-mentioned technical problem is as follows: a kind of novel high-efficiency and energy-saving self priming pump, including the pump housing,
The middle upper end of the pump housing is provided with cylinder, is equipped with pump shaft in the cylinder, and the connecting place of the pump shaft and cylinder is provided with
Mechanical seal, one end of the pump shaft are provided with impeller, and the other end is connected with motor, and the side of the cylinder is equipped with sucking
Mouthful, the outlet of the cylinder connects gas-liquid separation chamber by discharge outlet bend pipe, and the gas-liquid separation chamber is connected to institute by return pipe
Cylinder is stated, the top of the gas-liquid separation chamber is equipped with check-valves.
Further, pressure-control valve is installed on the return pipe, low pressure return is realized, after pressure is normal in the pump housing
The pressure-control valve is closed.
Further, the motor is mounted on motor rack, and the top of the pump housing is arranged in the motor rack.
Further, the side of the gas-liquid separation chamber is equipped with exhaust valve.
Further, the cylinder is initial sucking water and the cylinder for storing liquid.
Further, the mechanical seal is the mechanical seal of negative pressure booster-type.
The beneficial effect of this patent is:
1, the utility model structure is simple, implements together in combination with pipe-line system, intermediate without sensor, controls without automation
Device processed reduces use cost；In addition accuracy rate is high, and failure rate is low, while fluidic layout meets the requirement of centrifugal pump, have compared with
High energy-saving effect；
2, the connecting place of pump shaft and cylinder described in the utility model is provided with negative pressure booster formula mechanical seal, is greatly promoted
The sealing performance of pump shaft, and then effective guarantee the utility model is safely and steadily run, convenient for being widely used to promote.
Detailed description of the invention
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art
Under the premise of labour, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of structural schematic diagram of novel high-efficiency and energy-saving self priming pump described in the utility model specific embodiment；
Appended drawing reference:
1- motor；2- mechanical seal；3- cylinder；4- impeller；The 5- pump housing；6- outlet bend pipe；7- gas-liquid separation chamber；8-
Pressure-control valve；9- return pipe；10- exhaust valve；11- check-valves；12- suction inlet；13- pump shaft；14- motor rack.
Specific embodiment
It is described in detail below in conjunction with embodiment of the attached drawing to technical solutions of the utility model.Following embodiment is only
For clearly illustrating the technical solution of the utility model, therefore it is only used as example, and it is originally practical to cannot be used as a limitation limitation
Novel protection scope.
It should be noted that unless otherwise indicated, technical term or scientific term used in this application should be this reality
The ordinary meaning understood with novel one of ordinary skill in the art.
In the description of the present application, it is to be understood that term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
The instructions such as " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside"
Orientation or positional relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description the utility model and simplification
Description, rather than the device or element of indication or suggestion meaning must have a particular orientation, constructed and grasped with specific orientation
Make, therefore should not be understood as limiting the present invention.
In this application unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The interaction relationship of the connection in portion or two elements.It for the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
Embodiment
As shown in Figure 1, a kind of novel high-efficiency and energy-saving self priming pump provided by the utility model, including the pump housing 5, the pump housing
5 middle upper end is provided with cylinder 3, and pump shaft 13 is equipped in the cylinder 3, and the connecting place of the pump shaft 13 and cylinder 3 is provided with
Mechanical seal 2, one end of the pump shaft 13 are provided with impeller 4, and the other end is connected with motor 1, the side installation of the cylinder 3
There is suction inlet 12, the outlet of the cylinder 3 connects gas-liquid separation chamber 7 by discharge outlet bend pipe 6, and the gas-liquid separation chamber 7 passes through
Return pipe 9 is connected to the cylinder 3, and the top of the gas-liquid separation chamber 7 is equipped with check-valves 11.
Further, pressure-control valve 8 is installed on the return pipe 9, low pressure return is realized, when pressure is normal in the pump housing
The pressure-control valve is closed afterwards.
Further, the motor 1 is mounted on motor rack 14, and the top of the pump housing 5 is arranged in the motor rack 14
End.
Further, the side of the gas-liquid separation chamber 7 is equipped with exhaust valve 10.
Further, the cylinder 3 is initial sucking water and the cylinder for storing liquid.
Further, the mechanical seal 2 is the mechanical seal of negative pressure booster-type, and the sealing performance of pump shaft can be allowed to be mentioned
It rises, ensures that the utility model is safely and steadily run.
Concrete operating principle are as follows: cylinder has in the present invention there are two function, sucks water by suction inlet when initial
Amount completes the storage of liquid later；The water for being such as opened to initially suck perfusion sufficient amount in water cylinder is first passed through, is started electronic
Machine, motor are rotated by pump shaft impeller, and the intracorporal water of cylinder is pressed into gas-liquid point by outlet bend pipe by impeller at this time
From room, gas is discharged from exhaust valve, and liquid returns in liquid storage cylinder body from return pipe, check-valves, and so on, sucks pump group
Gas in pipeline is constantly discharged, and liquid level constantly rises.When gas is all drained, pump cavity pressure rises, check-valves
It closes, pump enters normal operating conditions at this time.
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should
Understand: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of
Technical characteristic is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and this is practical new
The range of each embodiment technical solution of type.
Claims (5)
1. a kind of novel high-efficiency and energy-saving self priming pump, it is characterised in that: including the pump housing, the middle upper end of the pump housing is provided with cylinder,
Pump shaft is installed, the connecting place of the pump shaft and cylinder is provided with mechanical seal, one end setting of the pump shaft in the cylinder
There is impeller, the other end is connected with motor, and the side of the cylinder is equipped with suction inlet, and the outlet of the cylinder passes through discharge outlet
Bend pipe connects gas-liquid separation chamber, and the gas-liquid separation chamber is connected to the cylinder, the top of the gas-liquid separation chamber by return pipe
Check-valves is installed.
2. a kind of novel high-efficiency and energy-saving self priming pump according to claim 1, it is characterised in that: be equipped on the return pipe
Pressure-control valve realizes low pressure return, and the pressure-control valve is closed after pressure is normal in the pump housing.
3. a kind of novel high-efficiency and energy-saving self priming pump according to claim 2, it is characterised in that: the motor is mounted on electricity
In rack, the top of the pump housing is arranged in the motor rack.
4. a kind of novel high-efficiency and energy-saving self priming pump according to claim 3, it is characterised in that: the side of the gas-liquid separation chamber
End is equipped with exhaust valve.
5. a kind of novel high-efficiency and energy-saving self priming pump according to claim 4, it is characterised in that: the mechanical seal is negative pressure
Booster-type mechanical seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820639341.7U CN208236668U (en) | 2018-04-28 | 2018-04-28 | A kind of novel high-efficiency and energy-saving self priming pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820639341.7U CN208236668U (en) | 2018-04-28 | 2018-04-28 | A kind of novel high-efficiency and energy-saving self priming pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208236668U true CN208236668U (en) | 2018-12-14 |
Family
ID=64581780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820639341.7U Expired - Fee Related CN208236668U (en) | 2018-04-28 | 2018-04-28 | A kind of novel high-efficiency and energy-saving self priming pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208236668U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113417855A (en) * | 2021-08-03 | 2021-09-21 | 芜湖长江泵业有限公司 | Marine low-vibration low-noise vertical self-priming centrifugal pump |
-
2018
- 2018-04-28 CN CN201820639341.7U patent/CN208236668U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113417855A (en) * | 2021-08-03 | 2021-09-21 | 芜湖长江泵业有限公司 | Marine low-vibration low-noise vertical self-priming centrifugal pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181214 Termination date: 20200428 |