CN207795588U - A kind of centrifugal deep well pump - Google Patents

A kind of centrifugal deep well pump Download PDF

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Publication number
CN207795588U
CN207795588U CN201721647844.0U CN201721647844U CN207795588U CN 207795588 U CN207795588 U CN 207795588U CN 201721647844 U CN201721647844 U CN 201721647844U CN 207795588 U CN207795588 U CN 207795588U
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Prior art keywords
pump
shaft
deep well
impeller
well pump
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CN201721647844.0U
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杨学良
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ZHEJIANG XILING Co Ltd
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ZHEJIANG XILING Co Ltd
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Abstract

The utility model belongs to deep-well pump technical field, refer in particular to a kind of centrifugal deep well pump, including the pump housing, the pump housing includes pump shaft and pump barrel, and the water outlet section of the water inlet joint with inlet, several grades of impeller sets, upper support seat and drag-out mouth is disposed in pump barrel, on pump shaft;The lower end of pump shaft connects permanent magnet synchronous motor by shaft coupling, and the upper end is rotatably arranged on upper support seat;Impeller sets include impeller, guide vane and guide vane end cap, and impeller is mounted in the inner cavity of guide vane and guide vane end cap, the water inlet end of the water outlet connection next stage impeller sets of upper level impeller sets, are fixed on pump shaft by positioning sleeve between two impellers.The utility model is worked by the direct current brushless permanent magnet synchronous machine drives pump housing, and rotating speed can reach 7000 revs/min 9000 revs/min, under the premise of same size Yang Cheng and flow, can greatly reduce impeller diameter and pump housing outer diameter.In addition, it has the characteristics that high efficiency, low cost, can apply on a large scale in small-bore deep well pump operation.

Description

A kind of centrifugal deep well pump
Technical field
The utility model belongs to deep-well pump technical field, refers in particular to a kind of centrifugal deep well pump.
Background technology
Deep well pump operation is widely used in terms of deep-well draining, the maximum feature of deep well pump is to make motor and pump Integrally, water is aspirated and is conveyed by immersing in underground water well, be widely used in farmland discharging-irrigating, industrial and mining enterprises, city Plumbing and sewage disposal etc..
It is well known that the flow of pump is directly proportional to impeller diameter or motor speed, the Yang Cheng of pump and putting down for impeller diameter Side or motor speed it is square directly proportional.Due to traditional screw deep-well pumping common asynchronous machine, asynchronous machine Rotating speed at 3000 revs/min or so, the screw deep well pump of the slow-speed of revolution designs to realize the Yang Cheng and flow of same size When can increase impeller diameter and pump housing outer diameter, the increase of volume causes it to cannot be satisfied small well operations so that its use scope It greatly reduces.On the other hand, the increase of volume leads to the raising of manufacturing cost, the reduction of efficiency so that screw deep well pump will Slowly lose the market competitiveness.
In addition, the sealing problem of deep well pump is the big reason for mainly influencing its service life, it is therefore desirable to design one The deep well pump of the small outer diameter of money, high rotating speed, high efficiency, low cost.
Invention content
The purpose of this utility model is to provide simple in structure, the small outer diameter of one kind, low cost, high rotating speed, high efficiency, high sealing The centrifugal deep well pump of property.
What the purpose of this utility model was realized in:
A kind of centrifugal deep well pump, including the pump housing, the pump housing include pump shaft and pump barrel, in the pump barrel, on pump shaft according to The secondary water outlet section for being provided with the water inlet joint with inlet, several grades of impeller sets, upper support seat and drag-out mouth;
The lower end of the pump shaft connects permanent magnet synchronous motor by shaft coupling, and the upper end is rotatably arranged on the upper support seat On;
The impeller sets include impeller, guide vane and guide vane end cap, and the impeller is mounted on the inner cavity of guide vane and guide vane end cap In, the water outlet of upper level impeller sets is connected to the water inlet end of next stage impeller sets, is fixed by positioning sleeve between two impeller On pump shaft.
Preferably, it is provided with check-valves between the upper support seat and water outlet section.
Preferably, the upper end of the pump shaft is movably arranged on by rubber shaft bearing and axle sleeve on upper support seat.
Preferably, it is provided with filtering screen at the inlet of the water inlet joint.
Preferably, the first seal groove and the first sealing ring, institute are both provided on the lateral wall of the water inlet joint and water outlet section State the both ends junction that the first sealing ring is connected to pump barrel.
Preferably, the permanent magnet synchronous motor includes machine barrel, oil cylinder, step and machine shaft;The machine shaft Upper end is threaded through by upper bearing (metal) and mechanical seal on oil cylinder, its lower end is arranged by lower bearing on step, the oil The external sealing of cylinder and step is fixed with machine barrel;Inserting rack is provided in the machine barrel, it is fixed to be wound on upper inserting rack Subcoil is provided with corresponding magnetic links component on the machine shaft.
Preferably, the cable is sealingly disposed in by the 4th sealing ring and potting resin at the cable installing port of oil cylinder.
Preferably, sealed set has oil sac and oil sac pressing plate, the oil sac on the machine barrel of the permanent magnet synchronous electric motor spindle Pressing plate is fixed on by clamp spring on oil sac.
Preferably, third sealing ring, the third sealing are set on the machine shaft between the oil cylinder and shaft coupling The upper end of circle is connected on shaft coupling, and lower end offers annular groove, and corresponding seal convexity is provided on the oil cylinder.
Preferably, the outer diameter of the pump housing is less than 50mm.
The utility model is prominent and beneficial compared with prior art to be had the technical effect that:
1, the utility model is worked by the high-revolving direct current brushless permanent magnet synchronous machine drives pump housing, and rotating speed can reach It is 3-5 times of conventional screw deep well pump to 7000 revs/min -9000 revs/min.Rotating speed greatly improves so that identical rule Under the premise of lattice Yang Cheng and flow, impeller diameter and pump housing outer diameter can be greatly reduced.In addition, it is with efficient, cost It low, the features such as precision is high, can apply on a large scale in small-bore deep well pump operation.
2, the cable of the utility model is sealingly disposed in the cable installing port of oil cylinder by the 4th sealing ring and potting resin Place;Third sealing ring is set on machine shaft between the oil cylinder and shaft coupling.The setting of above-mentioned sealing structure increases The leakproofness for having added deep well pump ensure that the service life of pump.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the partial enlarged view at A in Fig. 1.
Fig. 3 is the partial enlarged view at B in Fig. 1.
Meaning represented by figure label:
1- pump shafts;2- pump barrels;3- water inlet joints;4- upper support seats;5- water outlet sections;6- shaft couplings;7- impellers;8- guide vanes;9- Guide vane end cap;
10- positioning sleeves;11- check-valves;12- rubber shaft bearings;13- axle sleeves;14- filtering screens;The first sealing rings of 15-;16- Positioning pin;17- trip bolts;
20- machine barrels;21- oil cylinders;22- steps;23- machine shafts;24- upper bearing (metal)s;25- mechanical seals;26- lower axles It holds;The upper inserting racks of 27-;28- stator coils;29- magnetic links components;
The 4th sealing rings of 30-;31- cables;32- cable pressing plates;33- oil sacs;34- oil sac pressing plates;35- third sealing rings; 36- seal convexities;The second sealing rings of 37-;38- potting resins.
Specific implementation mode
The utility model is further described with reference to specific embodiment:
A kind of centrifugal deep well pump, including the pump housing, the pump housing include pump shaft 1 and pump barrel 2, in the pump barrel 2, pump shaft 1 On be disposed with the water outlet section 5 of the water inlet joint 3 with inlet, several grades of impeller sets, upper support seat 4 and drag-out mouth;
The lower end of the pump shaft 1 connects permanent magnet synchronous motor by shaft coupling 6, and the upper end is rotatably arranged on the upper support On seat 4;
The impeller sets include impeller 7, guide vane 8 and guide vane end cap 9, and the impeller 7 is mounted on guide vane 8 and guide vane end cap 9 Inner cavity in, the water inlet end of the water outlets of upper level impeller sets connection next stage impeller sets passes through positioning between two impeller 7 Set 10 is fixed on pump shaft 1.The guide vane 8 and guide vane end cap 9 are fixed on pump barrel 2, and the impeller 7 is set with the rotation of pump shaft 1 It sets.
Preferably, permanent magnet synchronous motor is direct current brushless permanent magnet synchronous motor, has the characteristics that high-speed and high-efficiency, makes its depth Well pump is compared with deep well pump common at present, has the characteristics that high-speed cruising, volume and weight are same specification power poplar range of flow The 1/3-1/6 of conventional pumps, and it is energy-efficient.
Preferably, it is provided with check-valves 11 between the upper support seat 4 and water outlet section 5.The check-valves can prevent liquid It flows backwards, ensures to always exist liquid medium in pipeline after one-shot, idle running phenomenon occurs for deep well pump when preventing from starting next time.
Preferably, the upper end of the pump shaft 1 is movably arranged on by rubber shaft bearing 12 and axle sleeve 13 on upper support seat 4, institute It is at low cost to state rubber shaft bearing 12, will not get rusty, service life is relatively high.
Preferably, be provided with filtering screen 14 at the inlet of the water inlet joint 3, filtering screen 14 can prevent impurity into Enter the pump housing.
Preferably, the first seal groove and the first sealing ring are both provided on the lateral wall of the water inlet joint 3 and water outlet section 5 15, first sealing ring 15 is connected to the both ends junction of pump barrel 2, and increases the leakproofness of pump barrel 2.
Preferably, to facilitate installation, being provided with the first pin hole on the water outlet section 5 of the utility model, pump barrel 2 is correspondingly arranged There is the second pin hole.When installation, water outlet section 5 is located on pump barrel 2 by positioning pin 16, is then fixed by screw 17, it is described Screw 17 is fixed on across positioning pin 16 on upper support seat 4.
Preferably, the permanent magnet synchronous motor includes machine barrel 20, oil cylinder 21, step 22 and machine shaft 23;It is described Oil cylinder 21 is fixed by screws in water inlet joint 3.23 upper end of the machine shaft is worn by upper bearing (metal) 24 and mechanical seal 25 On oil cylinder 21, its lower end be arranged on step 22 by two lower bearings 26, the oil cylinder 21 and step 22 it is outer Portion's sealing is fixed with machine barrel 20;It is provided with inserting rack 27 in the machine barrel 20, stator coil 28 is wound on upper inserting rack 27, Corresponding magnetic links component 29 is provided on the machine shaft 23.
Preferably, the cable 31 is sealingly disposed in the peace of cable 31 of oil cylinder 21 by the 4th sealing ring 30 and potting resin It fills at mouth, increases leakproofness.
Preferably, the cable 31 of the direct current brushless permanent magnet synchronous motor is fixed on 2 outside of pump barrel by cable pressing plate 32.
Preferably, sealed set has oil sac 33 and oil sac pressure on the machine barrel 20 of direct current brushless permanent magnet synchronous motor bottom Plate 34, the oil sac pressing plate 34 are fixed on by clamp spring on oil sac 33, and clamp spring is fixed, easy for installation.
Preferably, it is set with third sealing ring 35 on the machine shaft 23 between the oil cylinder 21 and shaft coupling 6, described The endoporus upper end of three sealing rings 35 is obliquely installed and is connected on shaft coupling 6, and lower end offers annular groove, is set on the oil cylinder 21 It is equipped with corresponding seal convexity 36, increases the leakproofness between oil cylinder 21 and machine shaft 23.
Preferably, 21 lateral wall of the oil cylinder is provided with the second seal groove and the second sealing ring 37, second sealing ring 37 are connected between oil cylinder 21 and machine barrel 20, and the second sealing ring 37 can increase leakproofness, prevent water from entering motor internal, influence it Normal work.
Preferably, it is preferable that the outer diameter of the pump housing is less than 50mm, and the minimum outer diameter of this product is 47mm, far smaller than Similar product, therefore considerably increase the use scope of product.
The utility model is worked by the high-revolving direct current brushless permanent magnet synchronous machine drives pump housing, and rotating speed can reach 7000 revs/min -9000 revs/min, be 3-5 times of conventional screw deep well pump.Rotating speed greatly improves so that same size Under the premise of Yang Cheng and flow, impeller diameter and pump housing outer diameter can be greatly reduced.In addition, it is with efficient, cost It low, the features such as precision is high, can apply on a large scale in small-bore deep well pump operation.
The deep well pump is also equipped with dedicated controller, has the various working methods such as frequency control, constant speed, can be with constant pressure The operating modes such as constant current water supply, timing start-up shutdown, telecommunication network intelligent control, intelligent operation.Its wide adaptation range, 50/ 60Hz all can, Width funtion is practical, and constant output makes poplar range of flow remain unchanged, due to the use of direct current brushless permanent magnet synchronous motor, Its electric efficiency reaches as high as 92%, and single-phase power factor (PF) is up to 0.99, in addition after the composite loss of controller, the efficiency of pump is remote Higher than the common deep well pump of asynchronous machine.
Above-described embodiment is only the preferred embodiment of the utility model, not limits the protection model of the utility model according to this It encloses, therefore:The equivalence changes that all structures, shape, principle according to the utility model are done, should all be covered by the protection of the utility model Within the scope of.

Claims (10)

1. a kind of centrifugal deep well pump, including the pump housing, it is characterised in that:The pump housing includes pump shaft (1) and pump barrel (2), described It is disposed with the water inlet joint (3) with inlet, several grades of impeller sets, upper support seat (4) and band in pump barrel (2), on pump shaft (1) The water outlet section (5) of liquid outlet;
The lower end of the pump shaft (1) connects permanent magnet synchronous motor by shaft coupling (6), and the upper end is rotatably arranged on the upper support On seat (4);
The impeller sets include impeller (7), guide vane (8) and guide vane end cap (9), and the impeller (7) is mounted on guide vane (8) and guide vane In the inner cavity of end cap (9), the water inlet end of the water outlets of upper level impeller sets connection next stage impeller sets, two impeller (7) it Between be fixed on pump shaft (1) by positioning sleeve (10).
2. a kind of centrifugal deep well pump according to claim 1, it is characterised in that:The upper support seat (4) and water outlet section (5) check-valves (11) is provided between.
3. a kind of centrifugal deep well pump according to claim 1 or 2, it is characterised in that:The upper end of the pump shaft (1) passes through Rubber shaft bearing (12) and axle sleeve (13) are movably arranged on upper support seat (4).
4. a kind of centrifugal deep well pump according to claim 3, it is characterised in that:At the inlet of the water inlet joint (3) It is provided with filtering screen (14).
5. a kind of centrifugal deep well pump according to claim 4, it is characterised in that:The water inlet joint (3) and water outlet section (5) Lateral wall on be both provided with the first seal groove and the first sealing ring (15), first sealing ring (15) is connected to pump barrel (2) Both ends junction.
6. a kind of centrifugal deep well pump according to claim 1 or 2 or 4, it is characterised in that:The permanent magnet synchronous motor packet Include machine barrel (20), oil cylinder (21), step (22) and machine shaft (23);Machine shaft (23) upper end passes through upper bearing (metal) (24) and mechanical seal (25) is threaded through on oil cylinder (21), its lower end is arranged by lower bearing (26) on step (22), The external sealing of the oil cylinder (21) and step (22) is fixed with machine barrel (20);It is provided in the machine barrel (20) offline Frame (27) is wound with stator coil (28) on upper inserting rack (27), corresponding magnetic links is provided on the machine shaft (23) Component (29).
7. a kind of centrifugal deep well pump according to claim 6, it is characterised in that:Cable (31) passes through the 4th sealing ring (30) it is sealingly disposed at cable (31) installing port of oil cylinder (21) with potting resin.
8. a kind of centrifugal deep well pump according to claim 6, it is characterised in that:The machine of the permanent magnet synchronous electric motor spindle Sealed set has oil sac (33) and oil sac pressing plate (34), the oil sac pressing plate (34) to be fixed on oil sac by clamp spring on cylinder (20) (33) on.
9. a kind of centrifugal deep well pump according to claim 6, it is characterised in that:The oil cylinder (21) and shaft coupling (6) Between machine shaft (23) on be set with third sealing ring (35), the upper end of the third sealing ring (35) is connected to shaft coupling (6) on, lower end offers annular groove, and corresponding seal convexity (36) is provided on the oil cylinder (21).
10. a kind of centrifugal deep well pump according to claim 1, it is characterised in that:The outer diameter of the pump housing is less than 50mm.
CN201721647844.0U 2017-12-01 2017-12-01 A kind of centrifugal deep well pump Active CN207795588U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721647844.0U CN207795588U (en) 2017-12-01 2017-12-01 A kind of centrifugal deep well pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721647844.0U CN207795588U (en) 2017-12-01 2017-12-01 A kind of centrifugal deep well pump

Publications (1)

Publication Number Publication Date
CN207795588U true CN207795588U (en) 2018-08-31

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201721647844.0U Active CN207795588U (en) 2017-12-01 2017-12-01 A kind of centrifugal deep well pump

Country Status (1)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110374929A (en) * 2019-08-28 2019-10-25 浙江大元泵业股份有限公司 Deep well pump anti-rotation guide vane string
CN111561459A (en) * 2020-05-30 2020-08-21 温岭市奇新车业有限公司 Water pump motor for high-speed alternating current-direct current permanent magnet synchronous well

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110374929A (en) * 2019-08-28 2019-10-25 浙江大元泵业股份有限公司 Deep well pump anti-rotation guide vane string
CN110374929B (en) * 2019-08-28 2024-05-31 浙江大元泵业股份有限公司 Anti-rotation guide vane string of deep well pump
CN111561459A (en) * 2020-05-30 2020-08-21 温岭市奇新车业有限公司 Water pump motor for high-speed alternating current-direct current permanent magnet synchronous well
CN111561459B (en) * 2020-05-30 2024-05-31 温岭市奇新车业有限公司 High-speed AC/DC permanent magnet synchronous water pump motor for well

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Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of utility model: A centrifugal deep well pump

Effective date of registration: 20200908

Granted publication date: 20180831

Pledgee: Zhejiang Tyrone commercial bank Limited by Share Ltd. Taizhou Wenling branch

Pledgor: ZHEJIANG XILING Co.,Ltd.

Registration number: Y2020330000674

PE01 Entry into force of the registration of the contract for pledge of patent right