CN209145903U - A kind of horizontal centrifugal coal slurry pump - Google Patents
A kind of horizontal centrifugal coal slurry pump Download PDFInfo
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- CN209145903U CN209145903U CN201821965823.8U CN201821965823U CN209145903U CN 209145903 U CN209145903 U CN 209145903U CN 201821965823 U CN201821965823 U CN 201821965823U CN 209145903 U CN209145903 U CN 209145903U
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Abstract
The utility model relates to be centrifuged pump technical field, a kind of horizontal centrifugal coal slurry pump is disclosed.The pump housing of the horizontal centrifugal coal slurry pump includes the suction inlet being sequentially communicated, primary pump, connecting tube, two stage pump and outlet, and the impeller of primary pump and the impeller of two stage pump, which are both connected on pump shaft and are driven by pump shaft, to be rotated.Water-coal-slurry enters in primary pump after suction inlet sucking, and by connecting tube after acquisition energy in primary pump, into two stage pump, water-coal-slurry is further speeded up by the impeller in two stage pump, and static pressure increases, flow velocity increases, and flows out from outlet, is transported to pipeline.Primary pump is connected to two stage pump by connecting tube, and the lift and pump efficiency of pump are effectively improved, to improve operation power, increases treating capacity；Abrasion of the high concentration fluid foods to pump case can also be reduced, various working is applicable in, it is lower to particle-size distribution of coal-water slurry and mobility requirement, the replacement of components can be effectively reduced, the replacement cycle is extended, improves production stability.
Description
Technical field
The utility model relates to be centrifuged pump technical field more particularly to a kind of horizontal centrifugal coal slurry pump.
Background technique
Water-coal-slurry had attracted much attention in recent years as Filter Tuber For Clean Coal fuel and gasified raw material.With coal water slurry gasification technology
Development, higher requirements are also raised for stability and reliability to equipment, and wherein coal slurry pump is one of key equipment.Tradition is low
Pressure coal slurry pump mainly has diaphragm pump and reciprocating pump, when the concentration of trandfer fluid is higher, is easy blocking, there are valve or component longevity
Order the disadvantages of short, maintenance load is big.
In recent years, centrifugation coal slurry pump starts to replace conventional low coal slurry pump, and in the prior art, centrifugation low pressure coal slurry pump exists
Defect include: to mostly use single-stage pump shell structure greatly, when fluid concentrations are higher, centrifugal pump will lead to leaf due to unbalance stress
Wheel, restrictor ring abrasion, pump case abrasion is low so as to cause the pump housing service life, can not convey high-concentration coal-water slurry.
Also disclose that two-stage centrifugal coal slurry pump, the pump chamber of two-stage (two-speed) pump are directly connected in the prior art, although can increase
The lift of pump, but it is more serious to pump case abrasion, it is more demanding to sealing performance and pump case material.
Therefore, it needs to design a kind of horizontal centrifugal coal slurry pump, to solve the above-mentioned technical problems in the prior art.
Utility model content
The purpose of this utility model is to provide a kind of horizontal centrifugal coal slurry pump, which can improve pump
Lift improves material handling capacity, reduces parts wear.
For this purpose, the utility model uses following technical scheme:
A kind of horizontal centrifugal coal slurry pump, including pedestal, motor and the pump housing, the motor and the pump housing are arranged at described
On pedestal, the pump shaft of the pump housing is connected to the output end of the motor and is rotated by the motor driven, and the pump housing includes
Suction inlet, primary pump, connecting tube, two stage pump and the outlet being sequentially communicated, the impeller of the primary pump and the two stage pump
Impeller, which is both connected on the pump shaft and is driven by the pump shaft, to be rotated.
As the optimal technical scheme of above-mentioned horizontal centrifugal coal slurry pump, also set up between the primary pump and the suction inlet
There is feed cavity.
As the optimal technical scheme of above-mentioned horizontal centrifugal coal slurry pump, it is provided between the primary pump and the two stage pump
The surface of interlayer, the interlayer is provided with antiseptic wearable coat.
As the optimal technical scheme of above-mentioned horizontal centrifugal coal slurry pump, the primary pump and the two stage pump are by wear-resisting material
Material is made.
As the optimal technical scheme of above-mentioned horizontal centrifugal coal slurry pump, the pump case of the pump housing is made of wear-resistant material, institute
The inner surface for stating pump case is provided with antiseptic wearable coat.
As the optimal technical scheme of above-mentioned horizontal centrifugal coal slurry pump, set between the pump shaft and the output end of the motor
It is equipped with shaft coupling.
As the optimal technical scheme of above-mentioned horizontal centrifugal coal slurry pump, the impeller is double shrouded wheel.
As the optimal technical scheme of above-mentioned horizontal centrifugal coal slurry pump, the impeller is made of corrosion-proof wear-resistant material.
As the optimal technical scheme of above-mentioned horizontal centrifugal coal slurry pump, the fluid mass of the horizontal centrifugal coal slurry pump conveying
Concentration range is 35%~70%.
As the optimal technical scheme of above-mentioned horizontal centrifugal coal slurry pump, the working pressure range of the horizontal centrifugal coal slurry pump
For 0.1MPa~0.8MPa.
Compared with prior art, the advantages of the utility model and beneficial effect is:
The pump housing of horizontal centrifugal coal slurry pump provided by the utility model include primary pump, two stage pump, connecting tube, suction inlet and
Outlet, primary pump are connected to suction inlet, and primary pump is connected to by connecting tube with two stage pump, and two stage pump is connected to outlet, and one
The impeller of grade pump and the impeller of two stage pump, which are both connected on pump shaft and are driven by pump shaft, to be rotated, and the pump case of the pump housing is by wear-resistant material system
At.It is designed using two stage centrifugal, water-coal-slurry enters in primary pump after suction inlet sucking, passes through after obtaining energy in primary pump
Connecting tube is crossed, into two stage pump, water-coal-slurry is further speeded up by the impeller in two stage pump, and static pressure increases, flow velocity increases, from
Outlet outflow, is transported to pipeline.Primary pump is connected to two stage pump by connecting tube, and the lift and pump efficiency of pump are effectively improved, from
And operation power is improved, increase treating capacity；Abrasion of the high concentration fluid foods to pump case can also be reduced, various working is applicable in, it is right
Particle-size distribution of coal-water slurry and mobility requirement are lower, can effectively reduce the replacement of components, extend the replacement cycle, to extend pump
Service life, improve production stability.
Detailed description of the invention
Fig. 1 is the main view for the horizontal centrifugal coal slurry pump that specific embodiment of the present invention provides；
Fig. 2 is the top view for the horizontal centrifugal coal slurry pump that specific embodiment of the present invention provides；
Fig. 3 is the left view for the horizontal centrifugal coal slurry pump that specific embodiment of the present invention provides.
In figure:
1- pedestal；2- motor；3- pump shaft；4- shaft coupling；5- suction inlet；6- primary pump；61- level-one pump discharge；7- connection
Pipe；8- two stage pump；81- second level pump intake；9- outlet；10- impeller；11- feed cavity；12- bearing.
Specific embodiment
The technical solution of the utility model is further illustrated with embodiment with reference to the accompanying drawing.It is understood that this
Locate described specific embodiment and is used only for explaining the utility model, rather than the restriction to the utility model.It further needs exist for
Illustrate, illustrates only part relevant to the utility model for ease of description, in attached drawing and not all.
As shown in Figure 1-Figure 3, a kind of horizontal centrifugal coal slurry pump, including pedestal 1, motor 2 and the pump housing are present embodiments provided,
Motor 2 and the pump housing are arranged on pedestal 1, and the pump shaft 3 of the pump housing is connected to the output end of motor 2 and is driven by motor 2 and rotated, pump
Body includes the suction inlet 5 being sequentially communicated, primary pump 6, connecting tube 7, two stage pump 8 and outlet 9, the impeller 10 of primary pump 6 and two
The impeller 10 of grade pump 8, which is both connected on pump shaft 3 and is driven by pump shaft 3, to be rotated, and realizes that motor 2 drives the synchronous rotation of both stage impellers 10
Turn.
Further, feed cavity 11 is additionally provided between primary pump 6 and suction inlet 5, water-coal-slurry is after the sucking of suction inlet 5
It is introduced into feed cavity 11, then is inhaled into primary pump 6 under the action of impeller 10 of primary pump 6, subsequent centrifugation point is completed
From.
Primary pump 6 includes level-one pump discharge 61, and two stage pump 8 includes second level pump intake 81, level-one pump discharge 61 and two stage pump
Connecting tube 7 is connected between entrance 81.In the present embodiment, suction inlet 5, outlet 9, level-one pump discharge 61 and second level pump intake
81 are provided with flange, and screw hole is provided on flange for being fastenedly connected.
3 both ends of pump shaft are provided with bearing 12, and shaft coupling 4 is provided between pump shaft 3 and the output end of motor 2.
Interlayer is provided between the pump chamber of primary pump 6 and the pump chamber of two stage pump 8, interlayer separates primary pump 6 and two stage pump 8
It opens, and the surface of interlayer is provided with antiseptic wearable coat, can effectively reduce the impact wear of impurity particle in high-concentration coal-water slurry,
Replacement frequency is reduced, the service life of pump is improved.
To further increase wearability, primary pump 6 and two stage pump 8 are made of wear-resistant material, and the pump case of the pump housing is by wear-resisting
Material is made, and the inner surface of pump case is provided with antiseptic wearable coat, and abrasive sealing materials are filled between pump shaft 3 and pump case,
To be suitable for conveying highly filled, highly viscous material, the versatility of pump is improved.
In the present embodiment, impeller 10 is double shrouded wheel, including front shroud, back shroud and blade, and blade is arranged in front cover
Between plate and back shroud.Impeller 10 is made of corrosion-proof wear-resistant material, and wear-resisting property can be improved, and prolongs the service life.
Horizontal centrifugal coal slurry pump provided in this embodiment is designed using two stage centrifugal, and water-coal-slurry is sucked from suction inlet 5, is entered
Into feed cavity 11, motor 2 drives pump shaft 3 to rotate by shaft coupling 4, and then the impeller 10 in pump case is driven to rotate, by water coal
Slurry is drawn into primary pump 6, and water-coal-slurry is obtained after energy in primary pump 6 by connecting tube 7, into two stage pump 8, water-coal-slurry
It is further speeded up by the impeller 10 of two stage pump 8, static pressure increases, flow velocity increases, and flows out from outlet 9, is transported to pipeline.Level-one
Pump 6 is not connected to directly with two stage pump 8, but is connected to by connecting tube 7, the lift and pump efficiency of pump can be effectively improved, to improve
Operation power increases treating capacity.The components such as pump case, primary pump 6, two stage pump 8 and impeller 10 are all made of wear-resistant material and are made, effectively
The wearability of pump is improved, it is lower to particle-size distribution of coal-water slurry and mobility requirement to be applicable in various working, zero can be effectively reduced
The replacement of part extends the replacement cycle, improves production stability.The horizontal centrifugal coal slurry pump occupied area is small, and cost of investment is low.
The fluid mass concentration range of horizontal centrifugal coal slurry pump conveying provided in this embodiment can be 35%~70%, excellent
It is selected as 62%~70%.The working pressure range of horizontal centrifugal coal slurry pump can be 0.1MPa~0.8MPa.
Illustratively, in a specific embodiment of the utility model, operating pressure 0.6MPa, the concentration of water-coal-slurry
It is 65%；In another specific embodiment of the utility model, operating pressure 0.1MPa, the concentration of water-coal-slurry is 62%；
In another specific embodiment of the utility model, operating pressure 0.8MPa, water coal slurry concentration 67%.Three above is real
Applying the operating condition in example can obtain preferable centrifugal effect by horizontal centrifugal coal slurry pump provided by the utility model.
Obviously, the above embodiments of the present invention is used for the purpose of clearly illustrating examples for clearly illustrating the present invention, and
It is not limitations of the embodiments of the present invention.For those of ordinary skill in the art, in above description
On the basis of can also make other variations or changes in different ways.There is no need and unable to give all embodiments
Exhaustion.Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention etc., should be included in
Within the protection scope of the utility model claims.
Claims (10)
1. a kind of horizontal centrifugal coal slurry pump, including pedestal (1), motor (2) and the pump housing, the motor (2) and the pump housing are all provided with
It sets on the pedestal (1), the pump shaft (3) of the pump housing is connected to the output end of the motor (2) and is driven by the motor (2)
Turn is dynamic, which is characterized in that the pump housing includes the suction inlet (5), primary pump (6), connecting tube (7), two stage pump being sequentially communicated
(8) and outlet (9), the impeller (10) of the primary pump (6) and the impeller (10) of the two stage pump (8) are both connected to the pump
It is driven on axis (3) and by the pump shaft (3) and is rotated.
2. horizontal centrifugal coal slurry pump according to claim 1, which is characterized in that the primary pump (6) and the suction inlet
(5) feed cavity (11) are additionally provided between.
3. horizontal centrifugal coal slurry pump according to claim 1, which is characterized in that the primary pump (6) and the two stage pump
(8) interlayer is provided between, the surface of the interlayer is provided with antiseptic wearable coat.
4. horizontal centrifugal coal slurry pump according to claim 1, which is characterized in that the primary pump (6) and the two stage pump
(8) it is made of wear-resistant material.
5. horizontal centrifugal coal slurry pump according to claim 1, which is characterized in that the pump case of the pump housing is by wear-resistant material system
At the inner surface of the pump case is provided with antiseptic wearable coat.
6. horizontal centrifugal coal slurry pump according to claim 1, which is characterized in that the pump shaft (3) and the motor (2)
Shaft coupling (4) are provided between output end.
7. horizontal centrifugal coal slurry pump according to claim 1, which is characterized in that the impeller (10) is double shrouded wheel.
8. horizontal centrifugal coal slurry pump according to claim 1, which is characterized in that the impeller (10) is by corrosion-proof wear-resistant material
It is made.
9. horizontal centrifugal coal slurry pump according to claim 1, which is characterized in that the stream of the horizontal centrifugal coal slurry pump conveying
Weight concentration range is 35%~70%.
10. horizontal centrifugal coal slurry pump according to claim 1, which is characterized in that the work of the horizontal centrifugal coal slurry pump
Pressure limit is 0.1MPa~0.8MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821965823.8U CN209145903U (en) | 2018-11-27 | 2018-11-27 | A kind of horizontal centrifugal coal slurry pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821965823.8U CN209145903U (en) | 2018-11-27 | 2018-11-27 | A kind of horizontal centrifugal coal slurry pump |
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| Publication Number | Publication Date |
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| CN209145903U true CN209145903U (en) | 2019-07-23 |
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| CN201821965823.8U Active CN209145903U (en) | 2018-11-27 | 2018-11-27 | A kind of horizontal centrifugal coal slurry pump |
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| CN (1) | CN209145903U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109185179A (en) * | 2018-11-27 | 2019-01-11 | 中煤科工清洁能源股份有限公司 | A kind of horizontal centrifugal coal slurry pump |
-
2018
- 2018-11-27 CN CN201821965823.8U patent/CN209145903U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109185179A (en) * | 2018-11-27 | 2019-01-11 | 中煤科工清洁能源股份有限公司 | A kind of horizontal centrifugal coal slurry pump |
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