CN206738182U - Vertical single-stage centrifugal pump - Google Patents
Vertical single-stage centrifugal pump Download PDFInfo
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- CN206738182U CN206738182U CN201720463040.9U CN201720463040U CN206738182U CN 206738182 U CN206738182 U CN 206738182U CN 201720463040 U CN201720463040 U CN 201720463040U CN 206738182 U CN206738182 U CN 206738182U
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- pump
- shaft
- bearing
- stage centrifugal
- vertical single
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Abstract
The utility model discloses a kind of vertical single-stage centrifugal pump, including the pump housing, pump cover, bearing block and the motor coupled successively from bottom to top, pump shaft is provided with the pump housing, described pump shaft one end is equiped with impeller, the pump shaft other end couples through the pump cover, bearing block and with the rotating shaft of the motor, seal assembly is provided between the pump shaft and the pump cover, bearing assembly is provided between the pump shaft and the bearing block.The utility model has the advantages that compact-sized, floor space is small, safe and reliable to operation.
Description
Technical field
The pump class for liquid conveying is the utility model is related to, a kind of vertical single-stage centrifugal pump is refered in particular to, suitable for high suction depth
Situation about being limited with fabricating yard area.
Background technology
Vertical single-stage centrifugal pump is arranged in the rotating shaft of motor using impeller mostly at present, between motor and sealing structure
Axial distance is shorter, and generally existing is because of seal failure and leakage into motor bearings and then burns out the phenomenon of motor.In addition, at present
Vertical single-stage centrifugal pump necessary NPSH is larger, causes cavitation performance poor, often declines because of pump cavitation flow, lift,
Even stop.
Utility model content
The technical problems to be solved in the utility model is overcome the deficiencies in the prior art, there is provided a kind of compact-sized, occupation of land
Area is small, vertical single-stage centrifugal pump safe and reliable to operation.
In order to solve the above technical problems, the utility model uses following technical scheme：
A kind of vertical single-stage centrifugal pump, including the pump housing, pump cover, bearing block and the motor coupled successively from bottom to top, it is described
Be provided with pump shaft in the pump housing, described pump shaft one end is equiped with impeller, the pump shaft other end pass through the pump cover, bearing block and with the electricity
The rotating shaft connection of machine, is provided with seal assembly, is provided between the pump shaft and the bearing block between the pump shaft and the pump cover
Bearing assembly.
Further improvement as above-mentioned technical proposal：
Tooth form sealing ring is equiped with the inlet of the pump housing, is equiped with the pump housing for by the liquid outlet of the pump housing
The liquid drain at place to the tooth form sealing ring pressure inlet.
Inducer is equiped with the pump shaft, the inducer is located on the downside of the impeller.
Guide shaft bearing sleeve is installed on the pump shaft, the guide shaft bearing sleeve is between the impeller and the seal assembly, institute
State the guide bearing for being equiped with pump cover and coordinating with the guide shaft bearing sleeve.
The seal assembly include be sheathed on the pump shaft sealing axle sleeve, be sheathed on it is mechanical close on sealing axle sleeve
Envelope and the sealing gland for compressing sealing axle sleeve and mechanical seal, the sealing gland are fixedly connected with the pump cover.
The pump cover is provided with seal cavity, and the sealing axle sleeve and the mechanical seal are located in the seal cavity,
Connected between the seal cavity and the inlet of the pump housing by circulation pipe.
Connected between the seal cavity and the liquid outlet of the pump housing by flush pipe.
The bearing assembly is included located at the rolling bearing between the pump shaft and the bearing block, for adjusting the axis of rolling
The adjusting nut of axial location is held, for compressing the bearing gland of rolling bearing, the adjusting nut is combined on the pump shaft,
The bearing gland is fixedly connected with the bearing block.
Skeleton oil is equipped between the bearing gland and the pump shaft and between the bearing block and the pump shaft
Envelope.
Coupled between the pump shaft and the rotating shaft of the motor by formula shaft coupling of filling the span of a man's arms.
Compared with prior art, the utility model has the advantage of：Vertical single-stage centrifugal pump disclosed in the utility model, its
The pump housing, pump cover, bearing block, electric machine support and motor are compact-sized, floor space is small using vertical installation from bottom to top；Leaf
The rotating shaft connection through pump shaft and motor is taken turns, seal assembly is located between pump shaft and pump cover, and bearing assembly is located at pump shaft and bearing block
Between, it is distant between motor and seal assembly, it can avoid because of seal failure and leakage is into motor bearings, operational reliability
It is high.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model vertical single-stage centrifugal pump embodiment one.
Fig. 2 is the structural representation of the utility model vertical single-stage centrifugal pump embodiment two.
Each label represents in figure：1st, the pump housing；11st, pump shaft；12nd, impeller；13rd, inlet；14th, tooth form sealing ring；15th, liquid is gone out
Mouthful；16th, pressure inlet；17th, inducer；2nd, pump cover；21st, seal cavity；3rd, bearing block；4th, electric machine support；5th, motor；6th, sealing group
Part；61st, sealing axle sleeve；62nd, mechanical seal；63rd, sealing gland；7th, bearing assembly；71st, rolling bearing；72nd, adjusting nut；73、
Bearing gland；731st, male half coupling；81st, guide shaft bearing sleeve；82nd, guide bearing；91st, circulation pipe；92nd, flush pipe；100th, outside framework oil seal；
200th, formula of filling the span of a man's arms shaft coupling.
Embodiment
The utility model is described in further details below with reference to Figure of description and specific embodiment.
Embodiment one
As shown in figure 1, the vertical single-stage centrifugal pump of the present embodiment, including couple successively from bottom to top the pump housing 1, pump cover 2,
Bearing block 3 and motor 5, wherein motor 5 are fixedly connected by an electric machine support 4 with bearing block 3, and pump shaft 11, pump are provided with the pump housing 1
The one end of axle 11 is equiped with impeller 12, the other end of pump shaft 11 through pump cover 2, bearing block 3 and electric machine support 4 and with the rotating shaft of motor 5
Connection, is provided with seal assembly 6, bearing assembly 7 is provided between pump shaft 11 and bearing block 3 between pump shaft 11 and pump cover 2.
The vertical single-stage centrifugal pump, its pump housing 1, pump cover 2, bearing block 3, electric machine support 4 and motor 5 use from bottom to top
Vertical installation, it is compact-sized, floor space is small；Impeller 12 is connected through pump shaft 11 with the rotating shaft of motor 5, and seal assembly 6 is located at pump
Between axle 11 and pump cover 2, bearing assembly 7 be located between pump shaft 11 and bearing block 3, between motor 5 and seal assembly 6 distance compared with
Far, can avoid because of seal failure and leakage into motor bearings, operational reliability is high.
Tooth form sealing ring 14 is equiped with the inlet 13 of the pump housing 1, is equiped with the pump housing 1 for by the liquid outlet of the pump housing 1
To the pressure inlet 16 of tooth form sealing ring 14, pressure inlet 16 introduces highly pressurised liquid from the inner high voltage region of the pump housing 1 for liquid drain at 15
To at tooth form sealing ring 14, highly pressurised liquid is equably guided to by the vane inlet of impeller 12 by the inside groove of tooth form sealing ring 14, reached
Not only to the inlet plenum of impeller 12 but also the purpose of sinuous flow will not have been produced, and then impeller 12 is not likely to produce cavitation effect.The present embodiment
In, pressure inlet 16 is provided with branched.
In the present embodiment, inducer 17 is equiped with pump shaft 11, inducer 17 is located at the downside of impeller 12.Enter positioned at impeller 12
Inducer 17 before mouthful matches with impeller 12, provides certain pressure to the import of impeller 12 again while not choked flow, makes impeller 12
Possess and be not likely to produce cavitation effect.
In the present embodiment, install guide shaft bearing sleeve 81 on pump shaft 11, guide shaft bearing sleeve 81 be located at impeller 12 and seal assembly 6 it
Between, the guide bearing 82 coordinated with guide shaft bearing sleeve 81 is equiped with pump cover 2.By the cooperation of guide bearing 82 and guide shaft bearing sleeve 81, hold
By the radial load of pump shaft 11, make the amount of deflection of pump shaft 11 small, the stability of lifting centrifugation pump operation.
In the present embodiment, seal assembly 6 include be sheathed on pump shaft 11 sealing axle sleeve 61, be sheathed on sealing axle sleeve 61
Mechanical seal 62 and sealing gland 63 for compressing sealing axle sleeve 61 and mechanical seal 62, sealing gland 63 and pump cover 2
It is fixedly connected, the upper and lower ends of guide shaft bearing sleeve 81 abut with sealing axle sleeve 61, impeller 12 respectively.The seal assembly 6 is simple in construction, can
Lean on, good sealing effect.As further preferred scheme, pump cover 2 is provided with seal cavity 21, sealing axle sleeve 61 and mechanical seal
62 in seal cavity 21, are connected by circulation pipe 91 between seal cavity 21 and the inlet 13 of the pump housing 1, utilize circulation pipe
91 are back to the liquid in seal cavity 21 inlet 13 of the pump housing 1, reduce the pressure in seal cavity 21, are seal shaft
Set 61, the no leakage of mechanical seal 62 create lower pressure, are advantageous to further improve the sealing property of seal assembly 6.
In the present embodiment, connected between seal cavity 21 and the liquid outlet 15 of the pump housing 1 by flush pipe 92, utilize flush pipe
92 lead to the highly pressurised liquid at the liquid outlet 15 of the pump housing 1 in seal cavity 21, realize the flushing to mechanical seal 62, cooling and
Lubrication protection.
Bearing assembly 7 is included located at the rolling bearing 71 between pump shaft 11 and bearing block 3, for adjusting the axle of rolling bearing 71
To the adjusting nut 72 of position, for compressing the bearing gland 73 of rolling bearing 71, adjusting nut 72 is combined on pump shaft 11, axle
Pressure cap 73 is fixedly connected with bearing block 3.In the present embodiment, bearing gland 73 compresses the axis of rolling using male half coupling 731 thereon
Hold 71.
In the present embodiment, skeleton oil is equipped between bearing gland 73 and pump shaft 11 and between bearing block 3 and pump shaft 11
Envelope 100, two pieces outside framework oil seal 100 can ensure close between bearing gland 73 and pump shaft 11 and between bearing block 3 and pump shaft 11
Feng Xing.
In the present embodiment, coupled between pump shaft 11 and the rotating shaft of motor 5 by formula shaft coupling 200 of filling the span of a man's arms, make pump shaft 11 with
The rotating shaft centering of motor 5 is simple, quick, and formula of filling the span of a man's arms shaft coupling 200 is located in electric machine support 4.
In the present embodiment, the inlet 13 of the pump housing 1 is arranged to horizontal, and the angle between inlet 13 and liquid outlet 15 can
For 0 °, 90 ° or 180 °, installation needs are flexibly met.
Embodiment two
The vertical single-stage centrifugal pump structure and embodiment one of the present embodiment are essentially identical, and difference is, the pump housing 1 enters
Liquid mouth 13 is arranged to rectilinear, and compared to embodiment one, the structure can further reduce floor space, meet the peace under specified conditions
Dress needs.
Although the utility model is disclosed above with preferred embodiment, but it is not limited to the utility model.It is any
Those skilled in the art, in the case where not departing from technical solutions of the utility model scope, all using the disclosure above
Technology contents technical solutions of the utility model are made with many possible changes and modifications, or be revised as the equivalent of equivalent variations
Embodiment.Therefore, every content without departing from technical solutions of the utility model, according to the utility model technical spirit to real above
Any simple modifications, equivalents, and modifications that example is done are applied, all should be fallen in the range of technical solutions of the utility model protection.
Claims (10)
- A kind of 1. vertical single-stage centrifugal pump, it is characterised in that：Including the pump housing coupled successively from bottom to top（1）, pump cover（2）, axle Bearing（3）And motor（5）, the pump housing（1）It is interior to be provided with pump shaft（11）, the pump shaft（11）One end is equiped with impeller（12）, pump Axle（11）The other end passes through the pump cover（2）, bearing block（3）And with the motor（5）Rotating shaft connection, the pump shaft（11）With The pump cover（2）Between be provided with seal assembly（6）, the pump shaft（11）With the bearing block（3）Between be provided with bearing assembly （7）.
- 2. vertical single-stage centrifugal pump according to claim 1, it is characterised in that：The pump housing（1）Inlet（13）It is interior It is equiped with tooth form sealing ring（14）, the pump housing（1）On be equiped with for by the pump housing（1）Liquid outlet（15）The liquid drain at place To the tooth form sealing ring（14）Pressure inlet（16）.
- 3. vertical single-stage centrifugal pump according to claim 1 or 2, it is characterised in that：The pump shaft（11）On be equiped with and lure Guide wheel（17）, the inducer（17）Positioned at the impeller（12）Downside.
- 4. vertical single-stage centrifugal pump according to claim 1 or 2, it is characterised in that：The pump shaft（11）Upper installing guide shaft Bearing sleeve（81）, the guide shaft bearing sleeve（81）Positioned at the impeller（12）With the seal assembly（6）Between, the pump cover（2）On It is equiped with and the guide shaft bearing sleeve（81）The guide bearing of cooperation（82）.
- 5. vertical single-stage centrifugal pump according to claim 1 or 2, it is characterised in that：The seal assembly（6）Including being arranged In the pump shaft（11）On sealing axle sleeve（61）, be sheathed on sealing axle sleeve（61）On mechanical seal（62）And for pressing Tightening seal axle sleeve（61）And mechanical seal（62）Sealing gland（63）, the sealing gland（63）With the pump cover（2）It is fixed Connection.
- 6. vertical single-stage centrifugal pump according to claim 5, it is characterised in that：The pump cover（2）It is provided with seal cavity （21）, the sealing axle sleeve（61）With the mechanical seal（62）Positioned at the seal cavity（21）It is interior, the seal cavity （21）With the pump housing（1）Inlet（13）Between pass through circulation pipe（91）Connection.
- 7. vertical single-stage centrifugal pump according to claim 6, it is characterised in that：The seal cavity（21）With the pump housing （1）Liquid outlet（15）Between pass through flush pipe（92）Connection.
- 8. vertical single-stage centrifugal pump according to claim 1 or 2, it is characterised in that：The bearing assembly（7）Including located at The pump shaft（11）With the bearing block（3）Between rolling bearing（71）, for adjusting rolling bearing（71）Axial location Adjusting nut（72）, for compressing rolling bearing（71）Bearing gland（73）, the adjusting nut（72）It is combined on the pump Axle（11）On, the bearing gland（73）With the bearing block（3）It is fixedly connected.
- 9. vertical single-stage centrifugal pump according to claim 8, it is characterised in that：The bearing gland（73）With the pump shaft （11）Between and the bearing block（3）With the pump shaft（11）Between be equipped with outside framework oil seal（100）.
- 10. vertical single-stage centrifugal pump according to claim 1 or 2, it is characterised in that：The pump shaft（11）With the motor （5）Rotating shaft between pass through formula shaft coupling of filling the span of a man's arms（200）Connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720463040.9U CN206738182U (en) | 2017-04-28 | 2017-04-28 | Vertical single-stage centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720463040.9U CN206738182U (en) | 2017-04-28 | 2017-04-28 | Vertical single-stage centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206738182U true CN206738182U (en) | 2017-12-12 |
Family
ID=60563182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720463040.9U Active CN206738182U (en) | 2017-04-28 | 2017-04-28 | Vertical single-stage centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206738182U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110725801A (en) * | 2019-11-20 | 2020-01-24 | 上海佰诺泵阀有限公司 | A direct-coupled centrifugal pump |
-
2017
- 2017-04-28 CN CN201720463040.9U patent/CN206738182U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110725801A (en) * | 2019-11-20 | 2020-01-24 | 上海佰诺泵阀有限公司 | A direct-coupled centrifugal pump |
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