CN102808773B - Pump with replaceable assembled liner - Google Patents

Pump with replaceable assembled liner Download PDF

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Publication number
CN102808773B
CN102808773B CN201210299361.1A CN201210299361A CN102808773B CN 102808773 B CN102808773 B CN 102808773B CN 201210299361 A CN201210299361 A CN 201210299361A CN 102808773 B CN102808773 B CN 102808773B
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China
Prior art keywords
pump
spiral case
case core
impeller
pin
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CN201210299361.1A
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Chinese (zh)
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CN102808773A (en
Inventor
石海峡
巫建波
李强
胡敬宁
柴立平
何玉杰
宫恩祥
燕浩
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Anhui Nanfang Chemical Pump Manufacture Co., Ltd.
Hefei University of Technology
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Hefei University of Technology
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Priority to CN201210299361.1A priority Critical patent/CN102808773B/en
Publication of CN102808773A publication Critical patent/CN102808773A/en
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Abstract

The invention discloses a pump with a replaceable assembled liner. The pump is characterized in that the replaceable assembled liner is arranged in a pump cavity formed by a pump body and a seal cavity cover, and comprises an impeller, a volute core and a volute core cover; the impeller is fixedly arranged on a pump shaft through a key, and is tightly screwed by an impeller nut; the volute core is positioned between the pump body and the seal cavity cover; one end of the volute core is positioned on the pump body through a volute core positioning pin, and the other end of the volute core is sealed by the seal cavity cover; one or more nozzles communicated with the pump body are arranged in the circumferential direction of the volute core; a gap is reserved between the volute core and the pump body; an opening ring is arranged between the volute core and a front cover plate of the impeller; the volute core cover and the volute core are matched with the seal cavity cover and are used for tightly compressing the seal cavity cover; and a flow channel which sequentially pass through the volute core, the impeller and the nozzles is formed from a pump inlet to a pump outlet. By the pump, assembly structures of the same pump type can meet variation requirements under various working conditions.

Description

A kind of pump of replaceable combined inner lining
Technical field
The present invention relates to a kind of pump, is more particularly a kind of equipment being widely used in carrying liquid, vapour-liquid and vapour solid mixture.
Background technique
Pump mainly carries liquid, vapour-liquid and vapour solid mixture, be a kind of is the equipment of liquid pressure energy by the Conversion of Energy that prime mover is carried, and is widely used in the fields such as petrochemical industry, agricultural irrigation, Aero-Space and colliery at present.But traditional pump structure is fluid to be entered impeller and obtains after energy and directly discharge through spiral case or stator, this just makes the corresponding a kind of operating mode of a kind of pump-type composite structure, be unfavorable for standardization manufacture and field device working conditions change, and design cost and cost of production higher, when lift of pump, flow can not meet and require, necessary involuntary conversion pump-type, greatly wastes human and material resources and financial resources.
Summary of the invention
The present invention is the deficiency for avoiding existing for above-mentioned prior art, provides that a kind of safety coefficient is high, the pump of the replaceable combined inner lining of good stability, can meet various working change to make same pump-type composite structure.
The present invention is that technical solution problem adopts following technological scheme:
The pump of the replaceable combined inner lining of the present invention, its structural feature is: in the pump chamber be made up of the pump housing and Seal cage lid, arrange removable combined inner lining; Described combined inner lining comprises impeller, spiral case core and spiral case core cap;
Described impeller is fixedly installed on pump shaft by key, and is tightened by impeller nut;
Described spiral case core is between the pump housing and Seal cage lid, one end of spiral case core is positioned on the pump housing by spiral case core positioning dowel, the other end is closed by Seal cage cap seal, arranges the one or more nozzles through with the pump housing, leave space between spiral case core and the pump housing at the circumferencial direction of described spiral case core; A choma is had between described spiral case core and front shroud of impeller;
Described spiral case core cap is by seam and is arranged on spiral case core cap seal ring on seam and coordinates with spiral case core and sealing gland and to compress; To be formed by pump inlet successively through spiral case core, impeller, nozzle to the runner of pump discharge.
The pump of the replaceable combined inner lining of the present invention, its structural feature is also:
Described nozzle is made up of straight mouth section and diffusion end two-part, and the inner flow passage of described straight mouth section and spiral case core is tangent, and described diffusion end is connected with the pump housing.
Nozzle is one or equally distributed multiple.
On the end face of Seal cage lid side, arrange pin-and-hole seat at described spiral case core cap, described pin-and-hole seat is positioned on spiral case core cap by spiral case core cap tightening pin; The side of pin-and-hole seat surface to Seal cage lid is provided with pin-and-hole, and pin-and-hole seat is fixedly connected with Seal cage lid by the tightening pin in pin-and-hole.
Compared with the prior art, beneficial effect of the present invention is embodied in:
1, the present invention is by changing combined inner lining, changes operating mode, make same pump-type composite structure can meet multiple different operating mode, to improve the utilization rate of pump, reduce production and application cost by increasing nozzle number and changing impeller;
2, the spiral case core one end in the present invention is fixed by positioning dowel and the pump housing, and the other end coordinates with spiral case core cap, and by the pump housing and sealing gland fixed closed, the pump of replaceable combined inner lining is vibrated little, noise is low, good stability, and reliability is high;
3, structure of the present invention is simple, and by dismantling, Seal cage lid is connected with the bolt of the pump housing, then dismantles the pin of pin-and-hole seat and Seal cage lid, spiral case core cap, spiral case core cap of just can dismantling; Finally dismantle the positioning dowel of the pump housing and spiral case core, realize the object of the dismounting pump housing, spiral case core, unscrew impeller nut, take off impeller, realize the object that disassembling, assembling and replacing is easy.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is combined inner lining structural representation in the present invention;
Fig. 3 is nozzle arrangements schematic diagram of the present invention;
Number in the figure: 1 pump discharge; 2 pump housing seal rings; 3 pump housings; 4 impeller nuts; 5 pump inlets; 6 spiral case core seal rings; 7 chomas; 8 spiral case core positioning dowels; 9 spiral case cores; 10 impellers; 11 Seal cage lids; 12 mechanical sealing parts; 13 pump shafts; 14 spiral case core cap tightening pins; 15 pin-and-hole seats; 16 spiral case core cap seal rings; 17 nozzles; 18 spiral case core caps; 19 keys.
Embodiment:
See Fig. 1 and Fig. 2, in the present embodiment, the pump structure form of replaceable combined inner lining is: in the pump chamber be made up of the pump housing 3 and Seal cage lid 11, arrange removable combined inner lining; Combined inner lining comprises impeller 10, spiral case core 9 and spiral case core cap 18;
As depicted in figs. 1 and 2:
Impeller 10 is fixedly installed on pump shaft 13 by key 19, and is tightened by impeller nut 4, and impeller nut 4, impeller 10 rotate together with pump shaft 13, and impeller nut 4 prevents impeller 10 turns of pines or takes off from pump shaft 13;
Spiral case core 9 is between the pump housing 3 and Seal cage lid 11, one end of spiral case core 9 is positioned on the pump housing 3 by spiral case core positioning dowel 8, the other end is closed by Seal cage lid 11, and spiral case core 9 is closed by the fixed position that the pump housing 3 and Seal cage lid 11 form, and prevents spiral case core 9 from loosening; A pump housing seal ring 2 is provided with, for fluid-encapsulated, in case fluid leaks between spiral case core 9 and the pump housing 3; Arrange the one or more nozzles 17 through with the pump housing 3 at the circumferencial direction of spiral case core 9, leave space between spiral case core 9 and the pump housing 3, when flow increases, ensure that fluid flowing is smooth and easy, required flow is determined by the quantity of nozzle 17; Between spiral case core 9 and impeller 10 front shroud, have a choma 7, fluid is when impeller 10 enters spiral case core 9, and have sub-fraction to flow through between spiral case core 9 and impeller 10 front shroud, choma 7 is in order to this sub-fraction fluid airtight; Arrange spiral case core seal ring 6 between the pump housing 3 and spiral case core 9, anti-fluid inflow pump entrance 5 forms backflow; Such power end driven by motor impeller 10 rotates, and makes fluid once through pump inlet 5, spiral case core 9, impeller 10, nozzle 17, is finally discharged by pump discharge 1.
Spiral case core cap 18 is by seam and is arranged on spiral case core cap seal ring 16 on seam and coordinates with spiral case core 9 and sealing gland 11 and to compress, the spatial placement of spiral case core cap 18, sealing gland 11 and pump shaft 13 composition has mechanical sealing parts 12, anti-fluid enters cavity flow between impeller 10 back shroud and spiral case core cap 18 to power end, mechanical sealing parts 12 rotates together with impeller 10, pump shaft 13, impeller nut 4, and fluid flows through pump inlet 5 and forms runner smoothly through spiral case core 9, impeller 10, nozzle 17 to pump discharge 1 successively.
In concrete enforcement, as shown in Figure 3, nozzle 17 is made up of straight mouth section and diffusion end two-part, and the inner flow passage of straight mouth section and spiral case core 9 is tangent, and diffusion is held and is connected with the pump housing 3, and nozzle 17 is set to one or to be evenly distributed on spiral case core 9 multiple; Fluid exports from impeller 10 and flows out, and discharges, form runner smoothly, reduce resistance, improve pressure energy through spiral case core 9, the straight mouth section of nozzle 17 and diffusion end, the pump housing 3 and pump discharge 1; When requiring flow to increase, increasing the nozzle quantity that size is identical, and not needing to change other sizes, just can realize the object of augmented flow.
As shown in Figure 1, in the present embodiment, the end face of spiral case core cap 18 towards Seal cage lid 11 side arranges pin-and-hole seat 15, pin-and-hole seat 15 is positioned on spiral case core cap 18 by spiral case core cap tightening pin 14, fix spiral case core 9 by Seal cage lid 11 and pin-and-hole seat 15, prevent spiral case core 9 from rotating; The side of pin-and-hole seat 15 towards Seal cage lid 11 is provided with pin-and-hole, pin-and-hole seat 15 is fixedly connected with Seal cage lid 11 by the tightening pin 14 in pin-and-hole, make spiral case core cap 18 and Seal cage lid 11 realize position by tightening pin 14 to fix, object prevents spiral case core cap 18 from rotating.
Adjustment about lift and flow:
When required lift can not meet user require time, directly change combined inner lining, by the size of adjustment spiral case core 9 inner flow passage and the external diameter of impeller 10, the lift needed for reality can be obtained; By changing the inner flow passage of major diameter impeller 10 and expansion spiral case core 9, realize the object increasing lift; Otherwise, realize by cutting impeller diameter 10 object reducing lift.
When required flow can not meet user require time, by the quantity of spiral case core 9 inner flow passage and nozzle 17, required flow can be obtained; Required flow becomes large, and palpus expands spiral case core 9 inner flow passage and increases the quantity of nozzle 17, otherwise reduces the quantity of nozzle 17.

Claims (4)

1. a pump for replaceable combined inner lining, is characterized in that: in the pump chamber be made up of the pump housing (3) and Seal cage lid (11), arrange removable combined inner lining; Described combined inner lining comprises impeller (10), spiral case core (9) and spiral case core cap (18);
Described impeller (10) is fixedly installed on pump shaft (13) by key (19), and is tightened by impeller nut (4);
Described spiral case core (9) is positioned between the pump housing (3) and Seal cage lid (11), one end of spiral case core (9) is positioned on the pump housing (3) by spiral case core positioning dowel (8), the other end is closed by Seal cage lid (11), the one or more nozzles (17) through with the pump housing are set at the circumferencial direction of described spiral case core (9), between spiral case core (9) and the pump housing (3), leave space; A choma (7) is had between described spiral case core (9) and impeller (10) front shroud;
Described spiral case core cap (18) is coordinated by seam and the spiral case core cap seal ring (16) be arranged on seam with spiral case core (9) and Seal cage lid (11) and compress; To be formed by pump inlet (5) successively through spiral case core (9), impeller (10), nozzle (17) to the runner of pump discharge (1).
2. the pump of replaceable combined inner lining according to claim 1, it is characterized in that: described nozzle (17) is made up of straight mouth section and diffusion end two-part, the inner flow passage of described straight mouth section and spiral case core (9) is tangent, and described diffusion end is connected with the pump housing (3).
3. the pump of replaceable combined inner lining according to claim 1 and 2, is characterized in that: nozzle (17) is one or equally distributed multiple.
4. the pump of replaceable combined inner lining according to claim 1, it is characterized in that: on the end face of Seal cage lid (11) side, arrange pin-and-hole seat (15) described spiral case core cap (18), described pin-and-hole seat (15) is positioned on spiral case core cap (18) by spiral case core cap tightening pin (14); On the side of Seal cage lid (11), be provided with pin-and-hole at pin-and-hole seat (15), pin-and-hole seat (15) is fixedly connected with Seal cage lid (11) by spiral case core cap tightening pin (14) in pin-and-hole.
CN201210299361.1A 2012-08-22 2012-08-22 Pump with replaceable assembled liner Active CN102808773B (en)

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CN102808773B true CN102808773B (en) 2015-03-25

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2616328C1 (en) * 2016-07-13 2017-04-14 Общество с ограниченной ответственностью "Нефтекамский машиностроительный завод" (ООО "НКМЗ") Single-gear centrifugal pumping unit
CN109630425A (en) * 2018-11-05 2019-04-16 宁波沃力科技有限公司 Efficient high-pressure big flow is without stall modular multi-function Vortex pump

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB990922A (en) * 1962-01-02 1965-05-05 Bell Aerospace Corp Centrifugal pump
GB1063096A (en) * 1964-05-22 1967-03-30 Ulrich Max Willi Barske Improvements in and relating to centrifugal pumps
US4302150A (en) * 1979-05-11 1981-11-24 The Garrett Corporation Centrifugal compressor with diffuser
US4414815A (en) * 1979-07-25 1983-11-15 Daimler-Benz Aktiengesellschaft Gas turbine with atomizer nozzle
FR2533627A1 (en) * 1982-09-28 1984-03-30 Chausson Usines Sa Turbo-engine driven by the exhaust gases of a heat engine fed to the said turbo-engine by two separate exhaust manifolds
US5090868A (en) * 1990-07-16 1992-02-25 Sundstrand Corporation Centrifugal pump
CN2308741Y (en) * 1997-05-20 1999-02-24 机械工业部合肥通用机械研究所 Self-sucking centrifugal pump with air extracting wheel
CN201610858U (en) * 2010-01-26 2010-10-20 上海东方泵业(集团)有限公司 Novel seal-less pump
CN201843789U (en) * 2010-11-16 2011-05-25 周寿云 High-temperature sludge oil pump used for directly liquefying coals
CN202047991U (en) * 2011-05-16 2011-11-23 广州市白云泵业集团有限公司 Vertical type self sucking pump
CN102562170A (en) * 2011-12-30 2012-07-11 西安交通大学 Low-temperature hydraulic turbine
CN102606509A (en) * 2012-03-27 2012-07-25 上海阿波罗机械股份有限公司 Connection structure for PCS (Passive Containment Cooling System) recirculation pump

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Publication number Priority date Publication date Assignee Title
US7281379B2 (en) * 2002-11-13 2007-10-16 Utc Power Corporation Dual-use radial turbomachine

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB990922A (en) * 1962-01-02 1965-05-05 Bell Aerospace Corp Centrifugal pump
GB1063096A (en) * 1964-05-22 1967-03-30 Ulrich Max Willi Barske Improvements in and relating to centrifugal pumps
US4302150A (en) * 1979-05-11 1981-11-24 The Garrett Corporation Centrifugal compressor with diffuser
US4414815A (en) * 1979-07-25 1983-11-15 Daimler-Benz Aktiengesellschaft Gas turbine with atomizer nozzle
FR2533627A1 (en) * 1982-09-28 1984-03-30 Chausson Usines Sa Turbo-engine driven by the exhaust gases of a heat engine fed to the said turbo-engine by two separate exhaust manifolds
US5090868A (en) * 1990-07-16 1992-02-25 Sundstrand Corporation Centrifugal pump
CN2308741Y (en) * 1997-05-20 1999-02-24 机械工业部合肥通用机械研究所 Self-sucking centrifugal pump with air extracting wheel
CN201610858U (en) * 2010-01-26 2010-10-20 上海东方泵业(集团)有限公司 Novel seal-less pump
CN201843789U (en) * 2010-11-16 2011-05-25 周寿云 High-temperature sludge oil pump used for directly liquefying coals
CN202047991U (en) * 2011-05-16 2011-11-23 广州市白云泵业集团有限公司 Vertical type self sucking pump
CN102562170A (en) * 2011-12-30 2012-07-11 西安交通大学 Low-temperature hydraulic turbine
CN102606509A (en) * 2012-03-27 2012-07-25 上海阿波罗机械股份有限公司 Connection structure for PCS (Passive Containment Cooling System) recirculation pump

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SE01 Entry into force of request for substantive examination
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GR01 Patent grant
CB03 Change of inventor or designer information

Inventor after: Pan Yaodong

Inventor after: Li Qiang

Inventor after: Shi Haixia

Inventor after: Li Yue

Inventor after: Yan Hao

Inventor before: Shi Haixia

Inventor before: Wu Jianbo

Inventor before: Li Qiang

Inventor before: Hu Jingning

Inventor before: Chai Liping

Inventor before: He Yujie

Inventor before: Gong Enxiang

Inventor before: Yan Hao

CB03 Change of inventor or designer information
TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20170615

Address after: Anhui province Xuancheng City Road 242500 splints Jingxian County Economic Development Zone No. 46

Co-patentee after: Hefei University of Technology

Patentee after: Anhui Nanfang Chemical Pump Manufacture Co., Ltd.

Address before: 230009 Tunxi Road, Anhui, China, No. 193, No.

Patentee before: Hefei University of Technology