CN203441755U - Axial suction type sea water desalination high pressure pump - Google Patents

Axial suction type sea water desalination high pressure pump Download PDF

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Publication number
CN203441755U
CN203441755U CN201320534643.5U CN201320534643U CN203441755U CN 203441755 U CN203441755 U CN 203441755U CN 201320534643 U CN201320534643 U CN 201320534643U CN 203441755 U CN203441755 U CN 203441755U
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China
Prior art keywords
axial
sea water
pump
suction
pressure service
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CN201320534643.5U
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Chinese (zh)
Inventor
肖功槐
赵永伟
杨怀武
陈立
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Shanghai Kaiquan Pump Group Co Ltd
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Shanghai Kaiquan Pump Group Co Ltd
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Abstract

The utility model discloses an axial suction type sea water desalination high pressure pump which comprises a stator part, a rotor part, a bearing part, a shaft seal part and an axial force balancing part. The rotor part comprises a suction-in section, a multi-stage middle section, a protrusion section and a vane, the rotor part comprises an impeller, a balance drum, a pump shaft and a shaft sleeve. The axial suction type sea water desalination high pressure pump is characterized in that an axial suction type straight conical suction chamber is arranged in the suction section of the stator part. The axial suction type sea water desalination high pressure pump has the advantages of being compact in structure, high in reliability and efficiency, convenient to install and maintain and the like. In addition, the axial size is short, and the rigidity of the rotor is good.

Description

A kind of axial sucking type desalination of sea water high-pressure service pump
Technical field
The utility model relates to a kind of sectional multi-stage centrifugal pump, particularly a kind of axial sucking type desalination of sea water high-pressure service pump of applicable reverse osmosis seawater desalination system.
Background technique
Hyperfiltration is one of method for desalting seawater of world today's main flow, and wherein permeable membrane, high-pressure service pump, energy recycle device are three large core technologies of reverse osmosis seawater desalting.At present, the flow of the hyperfiltration desalination of sea water high-pressure service pump that day processing is 10000 tons is 210~420m3/h, and lift is 550~700m.Traditional sectional type multi-stage pump generally adopts side to suck, vertically discharge mode, and its two ends are respectively provided with two cover gland seal devices and two covers adopt the bearing part of oil or grease lubrication, and adopt single Balance disc to carry out balancing axial thrust.
Traditional sectional multistage pump suction performance is poor, and rotor size is long, and bearing span is large, and pump efficiency is lower, and single balancing disc structure Balance disc easily occurs grinds the fault kill, and pump operation reliability is not high.Therefore develop that suction performance is good, efficiency is high, the desalination of sea water high-pressure service pump tool of reliable, compact structure, easy installation and removal is of great significance.
Model utility content
The technical problems to be solved in the utility model is: traditional sectional multistage pump suction performance is poor, rotor size is long, the problems such as bearing span is large, and pump efficiency is lower, thus a kind of compact structure provided, reliability is high, efficiency is high, have the desalination of sea water high-pressure service pump of good suction performance.
For achieving the above object, the technical solution of the utility model is as follows:
A kind of axial sucking type desalination of sea water high-pressure service pump; Described high-pressure service pump comprises stator component, rotor part, bearing part, shaft sealing part and axial force balance parts, described stator component comprises suction casing, multistage stage casing, Spit Section and stator, described rotor part comprises impeller, balancing drum, pump shaft and axle sleeve, is provided with the straight-tapered suction chamber of axial sucking type on the suction casing in described stator component.
Further, in described rotor part, the axial suction side of pump shaft is supported by Oil Wedge Hydrodynamic Bearing, its drive end passes through roller bearings, in described suction chamber, be provided with plain bearing housing, and be supported on the suction cone inner tube wall at straight-tapered suction chamber axial inlet place, described plain bearing housing internal circular surfaces is provided with circular groove, is provided with the through hole being communicated with outside in described circular groove, and this through hole is communicated with first order stage casing by pipeline; Described Oil Wedge Hydrodynamic Bearing is arranged in plain bearing housing, its two inner sides horizontal position respectively arranges an axial tank, this axial tank does not all communicate with Oil Wedge Hydrodynamic Bearing both sides end face, in described axial tank, offer the hole being communicated with sliding axle outer surface, and with plain bearing housing internal circular surfaces on circular groove corresponding matching.
Further, described plain bearing housing supports by sucking the stiffening rib of Taper Pipe.
Further, be positioned at rolling bearing front end and be provided with the spacer for impeller, stator centering on described pump shaft, one end of described spacer coordinates with the step of pump shaft location, and the other end contacts cooperation with the inner ring of rolling bearing.
Further, between described pump shaft and sliding bearing, be provided with surface through the anti-wear sleeve of cure process.
Further, described balancing drum is positioned at afterbody impeller back side balancing axial thrust, and described balancing drum cylindrical is provided with some little circular grooves and two large circular grooves.
Further, described shaft sealing part is single end face balance type integrated mechanical sealing.
By technique scheme, the beneficial effects of the utility model are:
The utlity model has that axial dimension is short, rotor good rigidly, compact structure, reliability is high, efficiency is high, the feature such as convenient for installation and maintenance, is mainly used in reverse osmosis seawater desalination system, also can be used for other high-pressure feed water occasions.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is sectional view of the present utility model;
Fig. 2 is the I portion enlarged diagram of Fig. 1;
The sectional view of the sliding bearing that Fig. 3 provides for the utility model;
The side view of the sliding bearing that Fig. 4 provides for the utility model;
The sectional view of the balancing drum that Fig. 5 provides for the utility model.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach object and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
Referring to Fig. 1, a kind of axial sucking type desalination of sea water high-pressure service pump that the utility model provides, comprise a pump barrel body 100, pump barrel body 100 inside are provided with stator component, rotor part, shaft sealing part and axial force balance parts, and pump barrel body 100 two ends are provided with suction side 200 and drive end 300.
Stator component, comprises suction casing 110,111, Spit Section 112, multistage stage casing and stator 113.
Suction casing 110, is arranged on one end of the suction side of pump barrel body 100, for liquid, enters in high-pressure service pump.
Multistage stage casing 111, is evenly arranged in pump barrel body 100, for settling stator 113 and impeller 120.
Spit Section 112, is arranged on one end of pump barrel body 100, for the discharge of pump barrel body 100 interior liquid.
Stator 113, matches with impeller 120, is evenly placed on every grade of stage casing in multistage stage casing 111.
Rotor part, comprises impeller 120, pump shaft 121 and balancing drum 150.
Impeller 120, matches with stator 113, is evenly arranged in the same way on every grade of stage casing in multistage stage casing 111.
Pump shaft 121, crosses in pump barrel body 100, and one end of pump shaft 121 is connected with the Oil Wedge Hydrodynamic Bearing 212 on suction side 200, and the other end is connected with the rolling bearing 310 of drive end 300.
Suction side 200 is arranged on the axial place of pump barrel body 100 one end, and a suction chamber 210 is set on suction side 200.
Suction chamber 210 specifically consists of Taper Pipe, forms a straight-tapered suction chamber 210, and it is for axially sucking.
Because traditional multistage pump generally adopts side, suck, and the utility model utilization arranges suction chamber 210 on one end of pump shaft 121, adopts axially to suck, and has improved like this suction efficiency.
Referring to Fig. 2, on the central position of suction chamber 210, be also provided with plain bearing housing 211.
Plain bearing housing 211 is specifically supported on the suction cone inner tube wall at straight-tapered suction chamber axial inlet place by sucking the stiffening rib of Taper Pipe, and it is for settling sliding bearing 212.
On the surface of plain bearing housing 211, be provided with circular groove 211a, be provided with through hole 211b on circular groove 211a, through hole 211b is communicated with outside, and outside liquid can flow in the circular groove 211a of plain bearing housing 211 by through hole 211b.
On first order stage casing in through hole 211b and pump barrel body 100, be provided with an external pipe 400, the press water in multistage stage casing 111 can flow in plain bearing housing 211 by external pipe 400 from through hole 211b like this.
Sliding bearing 212 is placed in plain bearing housing 211, is connected with pump shaft 121, and sliding bearing 212 is specially Oil Wedge Hydrodynamic Bearing, and it is for supporting suction side 200.
Referring to Fig. 3 and Fig. 4, at sliding bearing 212 both sides horizontal positions, be respectively provided with the axial tank 212a of a symmetry, and these two tank 212a are not communicate with its bi-side, form the tank of a sealing, on these two tank 212a, offer respectively an aperture 212b, these two apertures are to be communicated with the circular groove 211a of plain bearing housing 211.
Like this, during pump work, can by first order stage casing, draw press water by external pipe 400, while flowing into the circular groove 211a on plain bearing housing 211 by the through hole 211b on plain bearing housing 211, can from circular groove 211a, flow in the tank 212a of sliding bearing 212 by aperture 212b, because tank 212a does not communicate with bi-side, can form so a stable liquid film, thereby assurance sliding bearing 212 is worked reliably.
Between sliding bearing 212 and pump shaft 121, be provided with anti-wear sleeve 500, anti-wear sleeve 500 surfaces, through cure process, can guarantee the working life of sliding bearing like this.
Drive end 300, is arranged on the other end of pump shaft 121 directions on pump barrel body 100, and drive end 300 adopts rolling bearings 310 to support, and rolling bearing 310 is connected with pump shaft 121.
Front end at rolling bearing 310 is provided with spacer 311, and it is for adjusting impeller 120 and stator 113, help impeller 120 and stator 113 centerings.
One end of spacer 311 is connected with the step of pump shaft, and for location, the other end contacts with the inner ring of rolling bearing 310, like this, reaches the accurate centering of impeller 120 and stator 113 during assembling by adjusting its thickness.
Axial force balance parts in pump barrel body 100 are to adopt balancing drum 130 to carry out balancing axial thrust.
Referring to Fig. 5, on balancing drum 130 cylindricals, be provided with some little circular grooves 131 and two large circular grooves 132, by little circular groove 131 and the large circular groove 132 arranging, can make the leakage rate of balanced controls reduce to minimum, improve the volumetric efficiency of pump.
The single end face balance type integrated mechanical sealing 140 that shaft sealing part in pump barrel body 100 adopts, has improved leakage efficiency greatly.
More than show and described basic principle of the present utility model and major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and specification, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.

Claims (7)

1. an axial sucking type desalination of sea water high-pressure service pump; Described high-pressure service pump comprises stator component, rotor part, bearing part, shaft sealing part and axial force balance parts, described stator component comprises suction casing, multistage stage casing, Spit Section and stator, described rotor part comprises impeller, balancing drum, pump shaft and axle sleeve, it is characterized in that: the straight-tapered suction chamber that is provided with axial sucking type on the suction casing in described stator component.
2. a kind of axial sucking type desalination of sea water high-pressure service pump according to claim 1, it is characterized in that, in described rotor part, the axial suction side of pump shaft is supported by Oil Wedge Hydrodynamic Bearing, its drive end passes through roller bearings, in described suction chamber, be provided with plain bearing housing, and be supported on the suction cone inner tube wall at straight-tapered suction chamber axial inlet place, described plain bearing housing internal circular surfaces is provided with circular groove, in described circular groove, be provided with the through hole being communicated with outside, this through hole is communicated with first order stage casing by pipeline; Described Oil Wedge Hydrodynamic Bearing is arranged in plain bearing housing, its two inner sides horizontal position respectively arranges an axial tank, this axial tank does not all communicate with Oil Wedge Hydrodynamic Bearing both sides end face, in described axial tank, offer the hole being communicated with sliding axle outer surface, and with plain bearing housing internal circular surfaces on circular groove corresponding matching.
3. a kind of axial sucking type desalination of sea water high-pressure service pump according to claim 2, is characterized in that: described plain bearing housing supports by the stiffening rib sucking in Taper Pipe.
4. a kind of axial sucking type desalination of sea water high-pressure service pump according to claim 2, it is characterized in that: on described pump shaft, be positioned at rolling bearing front end and be provided with the spacer for impeller, stator centering, one end of described spacer coordinates with the step of pump shaft location, and the other end contacts cooperation with the inner ring of rolling bearing.
5. a kind of axial sucking type desalination of sea water high-pressure service pump according to claim 2, is characterized in that: between described pump shaft and sliding bearing, be provided with surface through the anti-wear sleeve of cure process.
6. a kind of axial sucking type desalination of sea water high-pressure service pump according to claim 1, is characterized in that: described balancing drum is positioned at afterbody impeller back side balancing axial thrust, and described balancing drum cylindrical is provided with some little circular grooves and two large circular grooves.
7. a kind of axial sucking type desalination of sea water high-pressure service pump according to claim 1, is characterized in that: described shaft sealing part is single end face balance type integrated mechanical sealing.
CN201320534643.5U 2013-08-29 2013-08-29 Axial suction type sea water desalination high pressure pump Active CN203441755U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320534643.5U CN203441755U (en) 2013-08-29 2013-08-29 Axial suction type sea water desalination high pressure pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320534643.5U CN203441755U (en) 2013-08-29 2013-08-29 Axial suction type sea water desalination high pressure pump

Publications (1)

Publication Number Publication Date
CN203441755U true CN203441755U (en) 2014-02-19

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105179297A (en) * 2015-09-21 2015-12-23 山东双轮股份有限公司 Reverse-osmosis seawater desalination multistage high-pressure pump
CN111120414A (en) * 2019-12-13 2020-05-08 西安航天动力研究所 Axial force balance structure and method for large-flow high-power precompression pump

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105179297A (en) * 2015-09-21 2015-12-23 山东双轮股份有限公司 Reverse-osmosis seawater desalination multistage high-pressure pump
CN111120414A (en) * 2019-12-13 2020-05-08 西安航天动力研究所 Axial force balance structure and method for large-flow high-power precompression pump

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