CN207485672U - For the high-pressure pump of seawater desalination system - Google Patents
For the high-pressure pump of seawater desalination system Download PDFInfo
- Publication number
- CN207485672U CN207485672U CN201721233696.8U CN201721233696U CN207485672U CN 207485672 U CN207485672 U CN 207485672U CN 201721233696 U CN201721233696 U CN 201721233696U CN 207485672 U CN207485672 U CN 207485672U
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- China
- Prior art keywords
- bearing
- disc
- pump shaft
- cap
- stage casing
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model is related to a kind of high-pressure pump for seawater desalination system, one end of pump shaft is equipped with integrated mechanical sealing I and drive end axle bearing assembly, and the other end of pump shaft is equipped with integrated mechanical sealing II and free end shaft bearing assembly；Suction casing, stage casing, Spit Section, balance mechanism and end cap are sequentially installed on pump shaft, final stage stage casing connection Spit Section is connected by rod between suction casing, stage casing, Spit Section and fixed；Spit Section is fixedly connected with balance mechanism and end cap, and suction casing is connected with the bearing body of drive end axle bearing assembly, and Spit Section is connected with the bearing body of free end shaft bearing assembly.The utility model reduces the hydraulic loss of casting, improves the efficiency of pump.
Description
Technical field
The utility model is related to a kind of sea water desalination pump, more particularly to a kind of high-pressure pump for seawater desalination system.
Background technology
Sea water desalination pump is the key equipment of Seawater Desalination Project, is mainly high-pressure pump, booster pump with pump.It is corrosion-resistant to pumping
Property, reliability have very high requirement.High-pressure pump at present used in seawater desalting plant is of high cost, the efficiency of pump is low；Flow passage components corrosion resistant
Corrosion can still can not meet environmental demand；Bearing temperature is high；It is complicated to pump support construction, is unfavorable for assembling and in-site installation.
Utility model content
The utility model for the above-mentioned prior art the problem of, provide a kind of height for seawater desalination system
Press pump solves the problems, such as that high-pressure pump is of high cost in the prior art, efficiency is low.
The technical solution of the utility model is as follows：
For the high-pressure pump of seawater desalination system, one end of pump shaft is equipped with integrated mechanical sealing I and drive end bearing group
Part, the other end of pump shaft are equipped with integrated mechanical sealing II and free end shaft bearing assembly；Be sequentially installed on pump shaft suction casing, in
Section, Spit Section, balance mechanism and end cap, final stage stage casing connection Spit Section, are connected between suction casing, stage casing, Spit Section by rod
Connect fixation；Spit Section is fixedly connected with balance mechanism and end cap, and suction casing is connected with the bearing body of drive end axle bearing assembly, is spued
Section is connected with the bearing body of free end shaft bearing assembly.
Guide vane inside the stage casing is installed, impeller is installed in guide vane, guide vane is coordinated with stage casing using seam allowance, and stage casing is mutual
Between pass through seam allowance positioning be coupled；The stage casing is equipped with the anti-rotation pin for preventing guide vane from rotating.
Sealing ring is studded in the stage casing and the endoporus of suction casing；Guide vane is studded in the guide vane endoporus of the guide vane
Set.
The balance mechanism includes balancing drum and balance set, and the outer surface suit balance set of balancing drum, balancing drum is with putting down
There are gap between weighing apparatus set, balance set by screw on Spit Section, by spacer ring, locating ring by screw determined by balancing drum
Position studs with O-ring seals on pump shaft at balance set and Spit Section cooperation, and the sealing of O shapes is set between balancing drum endoporus and pump shaft
Circle.
Radial clearance value 0.45mm between the sealing ring in the stage casing and the preoral loop of impeller, guide blade sleeve and impeller posterior umbilicus
Radial clearance value 0.35mm between son, radial clearance value 0.5mm between balancing drum and balance set.
The drive end axle bearing assembly includes bearing body I, bearing cap I, top bearing shell I, lower bearing I, disc I and bearing
Gland I, bearing body I, bearing cap I, bearing gland I and pump shaft, which are formed, is closed cavity structure, and top bearing shell I is mounted on lower bearing I
In the hole of bearing cap I and bearing body I compositions, disc I is sleeved on pump shaft and is arranged on and is closed in cavity, and disc I is with pump
Shaft rotation moves band oil to bearing lubrication；Bearing body I, the bearing cap I uses circular configuration, and top bearing shell I, lower bearing I use four
Oil Wedge Bush.
The free end shaft bearing assembly include bearing body II, bearing cap II, top bearing shell II, lower bearing II, disc II,
Angular contact ball bearing, bearing holder (housing, cover), bearing outside, bearing gland II and disc；Bearing body II, bearing cap II, bearing gland II
It is formed with pump shaft and is closed cavity structure, disc II, angular contact ball bearing, bearing holder (housing, cover), bearing outside and disc, which are arranged on, to be closed
It closes in cavity, top bearing shell II and lower bearing II is mounted in the hole of bearing cap II and bearing body II compositions, angular contact ball bearing
In hole and outer circle be set with bearing holder (housing, cover) and bearing outside；Bearing holder (housing, cover) and bearing outside are matched with angular contact ball bearing using transition
Conjunction mode fits together, and bearing outside outer end face studs with straight pin, and the straight pin other end is inserted into bearing gland II pin holes, reaches
To the purpose for preventing bearing outside from rotating；Disc II, angular contact ball bearing, bearing holder (housing, cover) and disc are arranged on pump shaft, are got rid of
Oil ring II and disc rotate band oil to bearing lubrication with pump shaft；Bearing body II, the bearing cap II uses circular configuration, on
Bearing shell II, lower bearing II use four oil Wedge Bushs.
The utility model has the advantages of as follows：
1st, the parts such as impeller, guide vane optimize and hot investment casting, reduce the hydraulic loss of casting, improve pump efficiency
Rate.
2nd, the flow passage components such as suction casing, Spit Section, stage casing, guide vane, impeller, balancing drum, balance set, axis select superplasticity Ovshinsky
Body-ferritic stainless steel.The material anti-seawater corrosion, resistance to pitting performance and intensity are superior to 304 and 316 grade austenite stainless
Steel.
3rd, bearing body, bearing cap are designed as circular configuration, whole filling with bracket, the stability of complete machine are improved, using four
Oil Wedge Bush, oil return is good to increase oil pocket simultaneously, conducive to heat dissipation.
4th, the pump both ends use material for Q235-A.F fixed plate support, it is easy for installation, at the same also save material into
This.
Description of the drawings
Fig. 1 is the structure diagram of the utility model.
Specific embodiment
Referring to the drawings, in conjunction with specific embodiments, the utility model is described in detail.
Embodiment
As shown in Figure 1, using mono-hull horizontal multi-stage centrifugal pump, one end of pump shaft 7 is equipped with integrated mechanical sealing I 11
With drive end axle bearing assembly, the other end of pump shaft 7 is equipped with integrated mechanical sealing II36 and free end shaft bearing assembly；On pump shaft according to
Secondary to be equipped with suction casing 1, stage casing 3, Spit Section 2, balance mechanism, end cap 6 and bracket 30, the final stage connection Spit Section 2 in stage casing is inhaled
Enter to be supported with fixed plate 25 between section 1, stage casing 3, Spit Section 2 and position and pass through rod 26 and nut fastening；Spit Section 2 and balance
The balance set 5 of mechanism is fixedly connected with end cap 6, and Spit Section 2 constitutes balance with end cap 6, balance set 5, balancing drum 9, pump shaft 7
Room；Suction casing 1 connect blending bolt nut by bracket 30 with the bearing body of drive end axle bearing assembly and fastens, Spit Section and freedom
The bearing body of end bearing component connects blending bolt nut by bracket 30 and fastens；The suction casing 1 vertically sucks, Spit Section
It is vertical to spue.
Guide vane 4 is installed in 3 inside of stage casing, and impeller 8 is installed in guide vane, and guide vane is coordinated with stage casing using seam allowance, stage casing
It is positioned and is coupled by seam allowance between each other；The stage casing is equipped with the anti-rotation pin 24 for preventing guide vane from rotating, anti-rotation pin 24
One end is set in the back side in stage casing, and the other end of anti-rotation pin 24 is inserted in the pin hole of guide vane, plays the mesh for preventing guide vane from rotating
's.Sealing ring 28 is studded in the endoporus in the stage casing；Guide blade sleeve 29 is studded in the guide vane endoporus of the guide vane；Suction casing
Sealing ring is also lined in endoporus, sealing ring and guide blade sleeve can prevent from leaking between grade.
The balance mechanism includes balancing drum 9 and balance set 5, the outer surface suit balance set 5 of balancing drum 9, balancing drum
There are gap between balance set, by screw on Spit Section, balancing drum is led to balance set by spacer ring 34, locating ring 35
It crosses screw to be located on pump shaft, studs with O-ring seals at balance set and Spit Section cooperation, set between balancing drum endoporus and pump shaft
O-ring seals；When rotor axial power is excessive, by balancing drum 9 come balancing axial thrust, remaining 5% axial force is by angular contact ball axis
It holds 10 to undertake, realizes rotor balancing.
Radial clearance value 0.45mm, guide blade sleeve 29 and leaf between the sealing ring 28 in the stage casing and the preoral loop of impeller 8
Take turns radial clearance value 0.35mm, radial clearance value 0.5mm between balancing drum 9 and balance set 5 between 8 posterior umbilicus.
The drive end axle bearing assembly includes bearing body I12, bearing cap I13, top bearing shell I14, lower bearing I15, gets rid of oil
Ring I16 and bearing gland I17, bearing body I, bearing cap I, bearing gland I and pump shaft, which are formed, is closed cavity structure, top bearing shell I14
It is mounted on lower bearing I15 in the hole of bearing cap I13 and bearing body I12 compositions, pump is sleeved on bearing body I12, disc I16
It on axis and is arranged in closure cavity, disc I16 rotates band oil to bearing lubrication with pump shaft 7；The bearing body I, bearing
I is covered using circular configuration, top bearing shell I, lower bearing I use four oil Wedge Bushs.
The free end shaft bearing assembly include bearing body II18, bearing cap II19, top bearing shell II31, lower bearing II32,
Disc II33, angular contact ball bearing 10, bearing holder (housing, cover) 20, bearing outside 21, bearing gland II22 and disc 23；Bearing body
II, bearing cap II, bearing gland II and pump shaft, which are formed, is closed cavity structure, disc II, angular contact ball bearing, bearing holder (housing, cover), axis
It holds housing and disc is arranged on and is closed in cavity, top bearing shell II31 and lower bearing II32 is mounted on bearing cap II19 and bearing body
In the hole of II18 compositions, hole and outer circle are set with bearing holder (housing, cover) and bearing outside in angular contact ball bearing；Bearing holder (housing, cover) and bearing
Housing is fitted together with angular contact ball bearing using transition fit system, and bearing outside outer end face studs with straight pin, cylinder
It sells the other end to be inserted into bearing gland II pin holes, achievees the purpose that prevent bearing outside from rotating；Disc II, angular contact ball axis
Hold, bearing holder (housing, cover) and disc are arranged on pump shaft, disc II and disc rotate band oil to bearing lubrication with pump shaft 7；It is described
Bearing body II, bearing cap II using circular configuration, top bearing shell II, lower bearing II use four oil Wedge Bushs.
The suction casing, Spit Section, stage casing, guide vane, impeller, balancing drum, balance set, the material of pump shaft are difficult to understand for superplasticity
Family name's body-ferritic stainless steel.
Integrated mechanical sealing I11, integrated mechanical sealing II36 draw medium extremely by 37 tap pipeline of level-one stage casing
Two terminal sealed cover screw holes reach and rinse purpose to sealing dynamic and static ring.
The performance parameter of the utility model, flow Q=430m3/h；Lift H=680m；Rotating speed n=975r/min；Efficiency eta=
82%；Shaft power P=1003kW.
Claims (8)
1. for the high-pressure pump of seawater desalination system, it is characterised in that one end of pump shaft is equipped with integrated mechanical sealing I and driving
End bearing component, the other end of pump shaft are equipped with integrated mechanical sealing II and free end shaft bearing assembly；It is sequentially installed on pump shaft
Suction casing, stage casing, Spit Section, balance mechanism and end cap, final stage stage casing connection Spit Section, lead between suction casing, stage casing, Spit Section
Rod connection is crossed to fix；Spit Section is fixedly connected with balance mechanism and end cap, the bearing body of suction casing and drive end axle bearing assembly
It is connected, Spit Section is connected with the bearing body of free end shaft bearing assembly.
2. the high-pressure pump according to claim 1 for seawater desalination system, it is characterised in that pacify inside the stage casing
Guide vane is filled, impeller is installed in guide vane, guide vane is coordinated with stage casing using seam allowance, and stage casing is positioned between each other by seam allowance to be coupled；Institute
The stage casing stated is equipped with the anti-rotation pin for preventing guide vane from rotating.
3. the high-pressure pump according to claim 2 for seawater desalination system, it is characterised in that the stage casing and sucking
Sealing ring is studded in the endoporus of section；Guide blade sleeve is studded in the guide vane endoporus of the guide vane.
4. the high-pressure pump according to claim 3 for seawater desalination system, it is characterised in that the sealing in the stage casing
Radial clearance value 0.45mm between ring and the preoral loop of impeller, radial clearance value 0.35mm between guide blade sleeve and impeller posterior umbilicus.
5. the high-pressure pump according to claim 1 for seawater desalination system, it is characterised in that the balance mechanism packet
Balancing drum and balance set are included, the outer surface suit balance set of balancing drum, there are gaps, balance set between balancing drum and balance set to lead to
Screw is crossed on Spit Section, balancing drum is located in by screw on pump shaft by spacer ring, locating ring, balance set and Spit Section
O-ring seals are studded at cooperation, O-ring seals are set between balancing drum endoporus and pump shaft.
6. the high-pressure pump according to claim 5 for seawater desalination system, it is characterised in that balancing drum and balance set it
Between radial clearance value 0.5mm.
7. the high-pressure pump according to claim 1 for seawater desalination system, it is characterised in that the drive end bearing
Component includes bearing body I, bearing cap I, top bearing shell I, lower bearing I, disc I and bearing gland I, bearing body I, bearing cap I, axis
Pressure cap I is formed with pump shaft is closed cavity structure, and top bearing shell I and lower bearing I is mounted on the hole of bearing cap I and bearing body I compositions
Interior, disc I is sleeved on pump shaft and is arranged on and is closed in cavity, and disc I rotates band oil to bearing lubrication with pump shaft；It is described
Bearing body I, bearing cap I using circular configuration, top bearing shell I, lower bearing I use four oil Wedge Bushs.
8. the high-pressure pump according to claim 1 for seawater desalination system, it is characterised in that the free end bearing
Component includes bearing body II, bearing cap II, top bearing shell II, lower bearing II, disc II, angular contact ball bearing, bearing holder (housing, cover), bearing
Housing, bearing gland II and disc；Bearing body II, bearing cap II, bearing gland II and pump shaft, which are formed, is closed cavity structure, gets rid of
Oil ring II, angular contact ball bearing, bearing holder (housing, cover), bearing outside and disc, which are arranged on, to be closed in cavity, top bearing shell II and lower bearing
II is mounted in the hole of bearing cap II and bearing body II composition, in angular contact ball bearing hole and outer circle be set with bearing holder (housing, cover) and
Bearing outside；Bearing holder (housing, cover) and bearing outside are fitted together with angular contact ball bearing using transition fit system, bearing outside
Outer end face studs with straight pin, and the straight pin other end is inserted into bearing gland II pin holes, achievees the purpose that prevent bearing outside from rotating；
Disc II, angular contact ball bearing, bearing holder (housing, cover) and disc are arranged on pump shaft, and disc II and disc rotate band with pump shaft
Oil gives bearing lubrication；Bearing body II, the bearing cap II uses circular configuration, and top bearing shell II, lower bearing II use four oil film wedges
Bearing shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721233696.8U CN207485672U (en) | 2017-09-25 | 2017-09-25 | For the high-pressure pump of seawater desalination system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721233696.8U CN207485672U (en) | 2017-09-25 | 2017-09-25 | For the high-pressure pump of seawater desalination system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207485672U true CN207485672U (en) | 2018-06-12 |
Family
ID=62482482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721233696.8U Expired - Fee Related CN207485672U (en) | 2017-09-25 | 2017-09-25 | For the high-pressure pump of seawater desalination system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207485672U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109469629A (en) * | 2018-12-08 | 2019-03-15 | 烟台龙港泵业股份有限公司 | A kind of high-pressure pump with energy recovery turbine |
-
2017
- 2017-09-25 CN CN201721233696.8U patent/CN207485672U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109469629A (en) * | 2018-12-08 | 2019-03-15 | 烟台龙港泵业股份有限公司 | A kind of high-pressure pump with energy recovery turbine |
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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: 20180612 |