CN208605404U - A kind of solids-laden fluid delivery pump - Google Patents
A kind of solids-laden fluid delivery pump Download PDFInfo
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- CN208605404U CN208605404U CN201821233612.5U CN201821233612U CN208605404U CN 208605404 U CN208605404 U CN 208605404U CN 201821233612 U CN201821233612 U CN 201821233612U CN 208605404 U CN208605404 U CN 208605404U
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- delivery pump
- spiral case
- cut water
- impeller
- bottom plate
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Abstract
The utility model provides a kind of solids-laden fluid delivery pump comprising spiral case, and the impeller inside the spiral case and more cut water bottom plates are set；More cut water bottom plates are arranged between the spiral case inner surface and the impeller lateral surface, including annular bottom plate and multiple spiral case cut waters that the annular bottom plate medial surface is arranged in.More cut water bottom plates of the delivery pump described in the utility model due to being provided with buffer action in spiral case, so that impeller is in more cut water bottom plate central rotationals, solids-laden fluid can rub with more cut water bottom plates, reduce velocity of medium in the diversion trench of spiral case inner wall, to reduce the abrasion to components such as spiral case, impellers, the wearability for having correspondinglyd increase delivery pump extends service life and the service life of delivery pump.
Description
Technical field
The utility model relates to technical field of fluid delivery, and in particular to a kind of solids-laden fluid delivery pump.
Background technique
In polysilicon production process, silicon powder-containing delivery pump mainly for delivery of silicon powder-containing chlorosilane liquid produced, wherein solid
Body content is 15%-20%.Convey silicon powder-containing chlorosilane liquid produced when, due to silicon powder in the spiral case of delivery pump high-speed punching
Brush has high pressure, the operating condition of small flow, therefore exacerbates the abrasion of the components such as spiral case, impeller, causes equipment that can not grow week
Phase operation.
Since the Rockwell hardness (HRC) of silicon powder is 65-75, and the Lip river of the main material dual phase steel 2205 of silicon powder-containing delivery pump
Family name's hardness (HRC) is less than 40, therefore the wear-resisting problem of silicon powder-containing delivery pump is always the difficult point and pain spot of production process.In order to
It solves the problems, such as the wear-resisting of silicon powder-containing delivery pump, is studied in industry only for wear-proof technique, mainly material is upgraded,
Fundamentally the control form of device structure and running device is not changed, the difficulty of equipment long-term operation can not be solved
Topic.
Utility model content
The utility model is completed in order at least partly solve the technical problems existing in the prior art.
Solving technical solution used by the utility model technical problem is:
The utility model provides a kind of solids-laden fluid delivery pump comprising spiral case, and be arranged in the snail
Impeller and more cut water bottom plates inside shell；The more cut water bottom plates setting the spiral case inner surface and the impeller lateral surface it
Between, including annular bottom plate and multiple spiral case cut waters that the annular bottom plate medial surface is arranged in.
Optionally, more cut water bottom plates are equal with the series of the impeller and correspond.
Optionally, the shape of the spiral case cut water is triangular prism shape, an and side of the triangular prism shape spiral case cut water
It is fixedly connected with the medial surface of the annular bottom plate.
Optionally, the spiral case cut water with a thickness of 3~5cm.
Optionally, the angle of the another two side of the triangular prism shape spiral case cut water is acute angle, and it is fixed on the ring
The angle of side on shape bottom plate and a side in the another two side be obtuse angle, with it is another in the another two side
The angle of one side is acute angle；Each spiral case cut water is uniformly distributed along the circumferential direction of the annular bottom plate medial surface, and is tilted
Direction is identical.
Optionally, the delivery pump further includes the pump shaft connecting with the impeller, and it is flat that axial force is provided on the pump shaft
Weigh mechanism.
Optionally, the axial force balance mechanism is using the balancing frame being sleeved on the pump shaft, and the pump shaft is far from institute
The rear end for stating impeller is provided with bearing, and the balancing frame is between the impeller and rear end bearing and close to the rear end bearing
Setting.
Optionally, the outlet end of the delivery pump is connect by backwashing pipeline with external liquid supplying device, the external confession
Liquid device is provided with valve, the front end of the valve on the backwash pipeline for providing clean flushing liquor to delivery pump
It is provided with restriction orifice.
Optionally, the delivery pump further include power supply, the motor that is connect with the power supply, and connect with the power supply
Frequency-variable controller；The frequency-variable controller is used to control the frequency of supply of the power supply, so that the revolving speed of the motor be controlled
In default low engine speed range；The index combustion fan standard-sized sheet of the delivery pump.
Optionally, the range of the default slow-speed of revolution is 2000~2200r/min.
The utility model has the advantages that
More cut water bottom plates of the delivery pump described in the utility model due to being provided with buffer action in spiral case, so that impeller
In more cut water bottom plate central rotationals, solids-laden fluid (chlorosilane liquid produced of such as silicon powder-containing) can be sent out with more cut water bottom plates
Raw friction, reduces velocity of medium in the diversion trench of spiral case inner wall, to reduce the abrasion to components such as spiral case, impellers, phase
The wearability that delivery pump should be improved extends service life and the service life of delivery pump.
Detailed description of the invention
Fig. 1 is the partial structural diagram of solids-laden fluid delivery pump provided by the embodiment of the utility model；
Fig. 2 is the structural schematic diagram of more cut water bottom plates in Fig. 1；
Fig. 3 is the rough schematic view of solids-laden fluid delivery pump provided by the embodiment of the utility model.
In figure: 1- volute outlet；2- spiral case cut water；The more cut water bottom plates of 3-；4- diversion trench；5- spiral case inlet；6-
Spiral case；7- impeller；8- assists impeller；9- balancing frame；10- backwashes pipeline；11- restriction orifice；12- frequency control
Device；13- power supply；14- annular bottom plate.
Specific embodiment
To make those skilled in the art more fully understand the technical solution of the utility model, with reference to the accompanying drawings and examples
The utility model is described in further detail.
The utility model provides a kind of solids-laden fluid delivery pump, can be applied to production of polysilicon apparatus field,
Convey the chlorosilane liquid produced of silicon powder-containing；The fields such as petrochemical industry production equipment and environment protecting pump are applied also for, conveying contains solid
The process liquid of grain.
Delivery pump described in the utility model is described in detail by specific embodiment below with reference to Fig. 1 to Fig. 3.
As shown in Figure 1, delivery pump described in the present embodiment includes spiral case 6, and impeller inside spiral case 6 is set (in figure
It is not shown) and more cut water bottom plates 3.More cut water bottom plates 3 are arranged between 6 inner surface of spiral case and impeller lateral surface, as shown in Fig. 2,
More cut water bottom plates 3 include annular bottom plate 14 and multiple spiral case cut waters 2 that 14 medial surface of annular bottom plate is arranged in.Wherein, impeller energy
Enough in more cut water bottom plate central rotationals, i.e., rotated in the space that multiple spiral case cut waters 2 surround.
In the present embodiment, due to being provided with more cut water bottom plates of buffer action in spiral case, so that impeller is in more cut waters
When bottom plate central rotational, solids-laden fluid (chlorosilane liquid produced of such as silicon powder-containing) can rub with more cut water bottom plates,
Velocity of medium in the diversion trench of spiral case inner wall is reduced to correspondingly increase to reduce the abrasion to components such as spiral case, impellers
The wearability of delivery pump extends service life and the service life of delivery pump.Wherein, diversion trench is the spill circle positioned at spiral case inner wall
Cambered surface runner, effect are confluences, will collect output by medium after spiral case cut water.
Since delivery pump is divided into single-stage pump and multistage pump, wherein single-stage pump only includes one stage impeller, and multistage pump then includes
Multi-stage impeller.In order to reduce abrasion of the solid particle to impellers at different levels, in the present embodiment, the series of more cut water bottom plates 3 and impeller
Equal and one-to-one correspondence.In other words, for single-stage pump, cut water bottom plate more than one, and more cut water bottom plates position need to be only set
Between spiral case inner surface and impeller lateral surface；For multistage pump, need to be arranged multiple more cut water bottom plates, and each impeller
Cut water bottom plate more than one is respectively provided between lateral surface and spiral case inner surface.
As shown in Fig. 2, the shape of spiral case cut water 2 is triangular prism shape, and a side of triangular prism shape spiral case cut water 2 and ring
The medial surface of shape bottom plate 14 is fixedly connected, such as is welded.The spiral case cut water of triangular prism shape can bear solid particle friction and
With longer service life.
Each more cut water bottom plates 3 may include 8~12 spiral case cut waters 2, particular number can by those skilled in the art according to
Actual conditions are set.The thickness (i.e. the height of triangular prism) of spiral case cut water 2 can be 3~5cm.Compared to it is existing with a thickness of
The spiral case cut water of 2cm or so, spiral case cut water described in the present embodiment are more wear-resisting.
As illustrated in fig. 2, it is assumed that three sides of triangular prism shape spiral case cut water 2 are respectively the side A, the side B and the side C.Its
In, the side A is that triangular prism shape spiral case cut water 2 is fixed on the side on annular bottom plate 14, and another two side is respectively the side B and C
Side.Then the angle of the side B and the side C is acute angle, and the angle of the side A and the side B is obtuse angle, with the angle of the side C is sharp
Angle.
Each spiral case cut water 2 is uniformly distributed along the circumferential direction of 14 medial surface of annular bottom plate, and inclined direction is identical, so arranges
Spiral case cut water can more undertake solid particle frictional force, to reduced to a greater degree to components such as spiral case, impellers
Abrasion.As shown in Fig. 2, each spiral case cut water 2 tilts in the counterclockwise direction in the present embodiment.Certainly, the utility model is not limited to
This, each spiral case cut water 2 can also tilt in the counterclockwise direction.
Inventors have found that the axial force balance of existing silicon powder-containing delivery pump rely primarily on choma gap realization, due to by
Silicon powder washes away, so that pump housing choma and impeller port ring quick abrasion, choma gap increases, and causes the axial force of pump uneven, causes
Pump part damage, life of equipment is short, and maintenance expense increases.
To solve the above-mentioned problems, delivery pump described in the present embodiment further includes the pump shaft connecting with impeller, is arranged on pump shaft
There is axial force balance mechanism.
In the present embodiment, by increasing axial force balance mechanism to delivery pump, it is flat that axial force is set specially on pump shaft
Weigh mechanism, efficiently solves existing silicon powder-containing delivery pump because silicon powder wears choma, causes spiral case choma and impeller port ring gap
Become larger, destroy axial force balance the problem of, improve the use condition of delivery pump, avoid because axial force change due to damage pump in its
Its component significantly reduces maintenance expense.
Specifically, as shown in figure 3, the axial force balance mechanism is using the balancing frame 9 being sleeved on pump shaft, pump shaft is separate
The rear end of impeller 7 is provided with bearing, and balancing frame 9 is arranged between impeller 7 and rear end bearing and close to the rear end bearing, example
Such as, the spacing between balancing frame and rear end bearing is less than 5mm.Since balancing frame belongs to existing components, therefore no longer to its structure
It is described in detail.
In the present embodiment, by balancing frame 9 realize pump axial force control, no matter more cut water bottom plates 3, impeller 7, auxiliary lobe
How wheel 8 wears, and will not have an impact to axial force balance, guarantees the integrity and service life of other component in pumping.
Inventor also found, the backwash pipeline of existing silicon powder-containing delivery pump is provided clean flushing liquor by metering pump, one
The aperture that the damage of denier metering pump or operator adjust backwash pipeline upper valve door is inconsistent, will result in backwash pipeline
Interior flushing flow quantity and pressure oscillation, to damage the components such as bearing.
To solve the above-mentioned problems, as shown in figure 3, the outlet end of the delivery pump passes through backwash pipeline 10 and external confession
Liquid device connection, external liquid supplying device are used to provide clean flushing liquor to delivery pump, backwash and are provided with valve on pipeline 10,
The front end of valve is provided with restriction orifice 11.Since restriction orifice belongs to existing components, therefore its structure is no longer described in detail.
In the present embodiment, clean flushing liquor is provided for delivery pump by external liquid supplying device, while in the recoil of delivery pump
It washes valve nose on pipeline and increases restriction orifice, can accurately control the flow and pressure of flushing liquor in backwash pipeline, avoid
For flow quantity and pressure oscillation caused by due to metering pump damage and operator's controlling opening of valve are inconsistent, to avoid
Damage the components such as bearing.Meanwhile the stable flow and pressure of flushing liquor also ensures the solid particle (such as silicon powder) at spiral case no
Stator can be entered, guarantee between rotor and stator completely, to enhance the lubricity of bearing, avoid bearing wear.
It should be noted that the rotor of delivery pump refers to the rotating part of delivery pump, including impeller, pump shaft, axle sleeve, axis
It holds；The stator of delivery pump refers to fixed part of delivery pump, including spiral case, guide wheel, sealing device etc..
Inventor also found that the frequency of existing silicon powder-containing delivery pump is 50hz, power frequency revolving speed is 2930r/min, to make to set
Standby nonoverload, the aperture of the index combustion fan of silicon powder-containing delivery pump is generally limited to 1/3, therefore silicon powder washes away and also causes outlet tune
The seal spool surface wear for saving valve, causes valve leak, pollutes environment, increases maintenance difficulty and operating risk.
To solve the above-mentioned problems, as shown in figure 3, the delivery pump further include power supply 13, the motor that is connect with power supply 13,
And the frequency-variable controller 12 being connect with power supply 13.Frequency-variable controller 12 is used to control the frequency of supply of power supply 13, thus by electric
The revolving speed control of machine is in default low engine speed range.The index combustion fan standard-sized sheet of the delivery pump.
It in the present embodiment, is calculated according to technological parameter, the revolving speed of delivery pump is controlled using frequency-variable controller, by its revolving speed
It is reduced in default low engine speed range, so that it may the index combustion fan standard-sized sheet of delivery pump is realized, to reduce because of index combustion fan section
The abrasion to valve core sealed cover is flowed, valve leak is avoided, also reduces solid particle (such as silicon powder) to spiral case, impeller component
The frequency is washed away, to realize the long-term operation of pump.
More preferably, the range of the default slow-speed of revolution is 2000~2200r/min.
Below with reference to Fig. 3, by taking the chlorosilane liquid produced of delivery pump conveying silicon powder-containing as an example, its work original is described in detail
Reason:
Driving power and control power supply are provided by power supply 13, is required according to site technique, by frequency-variable controller 12 to defeated
Pump is sent to carry out revolving speed control, pump shaft rotates impeller 7, auxiliary impeller 8, balancing frame 9 and rotates, and impeller 7 is in more cut water bottom plates 3
Between rotate so that generate centrifugal force from the chlorosilane liquid produced containing silicon powder that spiral case inlet 5 enters in spiral case 6, and with more cut waters
Bottom plate 3 rubs, since the conveying revolution speed reduction under frequency control (is reduced to 2000r/ by existing 2930r/min
Min or so), to reduce the abrasion loss of each component in delivery pump, the chlorosilane liquid produced of subsequent silicon powder-containing enter diversion trench 4 into
Row collects to realize pressurization, is finally transferred out by volute outlet 1.
In conclusion being transformed by the structure to delivery pump, that is, increase more cut water bottom plates and axial force balance mechanism,
The flow and pressure of flushing liquor in accurate control backwash pipeline, and converter technique is applied, to improve the wear-resisting of delivery pump
Property, extend the service life of delivery pump, realizes the effective use of delivery pump.It is specific as follows:
1) even running of equipment long period is realized, the cycle of operation of production scene silicon powder-containing delivery pump is by original 2-3
Extend to 6-9 months or even in the moon, 1.
2) improve site environment, reduce personnel's operation intensity and operating risk, (applied by the application of wear-proof technique
More cut water bottom plates), the wearability and service life of delivery pump are improved, the maintenance frequency is reduced, avoids outside environmental pollution and material
Leak the risk for the operating personnel that burns.
3) energy-saving, by frequency control, reduce electric power energy loss.
4) spare parts purchasing expense is reduced.After runing time promotes 3 times, spare part expense is down to the 1/3 of early period, greatly saves
Operating cost.
5) equipment stationarity is improved, technique production continuous and stable operation is conducive to.
It is understood that embodiment of above is merely to illustrate that the principles of the present invention and uses exemplary
Embodiment, however the utility model is not limited thereto.For those skilled in the art, this is not being departed from
In the case where the spirit and essence of utility model, various changes and modifications can be made therein, these variations and modifications are also considered as this reality
With novel protection scope.
Claims (10)
1. a kind of solids-laden fluid delivery pump, which is characterized in that including spiral case, and be arranged in inside the spiral case
Impeller and more cut water bottom plates；More cut water bottom plates are arranged between the spiral case inner surface and the impeller lateral surface, including
Annular bottom plate and multiple spiral case cut waters that the annular bottom plate medial surface is set.
2. delivery pump according to claim 1, which is characterized in that more cut water bottom plates are equal with the series of the impeller
And it corresponds.
3. delivery pump according to claim 1, which is characterized in that the shape of the spiral case cut water is triangular prism shape, and institute
A side for stating triangular prism shape spiral case cut water is fixedly connected with the medial surface of the annular bottom plate.
4. delivery pump according to claim 3, which is characterized in that the spiral case cut water with a thickness of 3~5cm.
5. delivery pump according to claim 3, which is characterized in that the another two side of the triangular prism shape spiral case cut water
Angle is acute angle, and the angle of the side that it is fixed on the annular bottom plate and a side in the another two side is
The angle of another side in obtuse angle and the another two side is acute angle；Each spiral case cut water is along the annular bottom plate
The circumferential direction of medial surface is uniformly distributed, and inclined direction is identical.
6. delivery pump according to any one of claims 1-5, which is characterized in that the delivery pump further includes and the leaf
The pump shaft of connection is taken turns, is provided with axial force balance mechanism on the pump shaft.
7. delivery pump according to claim 6, which is characterized in that the axial force balance mechanism uses and is sleeved on the pump
Balancing frame on axis, the pump shaft are provided with bearing far from the rear end of the impeller, and the balancing frame is located at the impeller with after
It is arranged between end bearing and close to the rear end bearing.
8. delivery pump according to any one of claims 1-5, which is characterized in that the outlet end of the delivery pump passes through anti-
Clean-up line is connect with external liquid supplying device, and the external liquid supplying device is described for providing clean flushing liquor to delivery pump
It is provided with valve on backwash pipeline, the front end of the valve is provided with restriction orifice.
9. delivery pump according to any one of claims 1-5, which is characterized in that the delivery pump further include power supply, with
The motor of the power supply connection, and the frequency-variable controller being connect with the power supply；The frequency-variable controller is described for controlling
The frequency of supply of power supply, thus by the revolving speed control of the motor in default low engine speed range；The outlet tune of the delivery pump
Save valve standard-sized sheet.
10. delivery pump according to claim 9, which is characterized in that the range of the default slow-speed of revolution be 2000~
2200r/min。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821233612.5U CN208605404U (en) | 2018-08-01 | 2018-08-01 | A kind of solids-laden fluid delivery pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821233612.5U CN208605404U (en) | 2018-08-01 | 2018-08-01 | A kind of solids-laden fluid delivery pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208605404U true CN208605404U (en) | 2019-03-15 |
Family
ID=65670266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821233612.5U Active CN208605404U (en) | 2018-08-01 | 2018-08-01 | A kind of solids-laden fluid delivery pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208605404U (en) |
-
2018
- 2018-08-01 CN CN201821233612.5U patent/CN208605404U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200413 Address after: 831500 Urumqi City, Xinjiang Uygur Autonomous Region, China Patentee after: XINTE ENERGY Co.,Ltd. Address before: 830011, the Xinjiang Uygur Autonomous Region Urumqi national hi tech Industrial Development Zone (new urban area) Ganquan Fort High-tech Industrial Park Patentee before: XINTE ENERGY Co.,Ltd. |
|
| TR01 | Transfer of patent right |