CN106321426A

CN106321426A - Blade type multi-stage pressurizing submersible pump

Info

Publication number: CN106321426A
Application number: CN201610794771.1A
Authority: CN
Inventors: 余文凌; 陈兆红
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-08-25
Filing date: 2016-08-25
Publication date: 2017-01-11
Anticipated expiration: 2036-08-25
Also published as: CN106321426B

Abstract

A blade type multi-stage pressurizing submersible pump comprises a pump body, a rotor, blades and a pump shaft; multiple blade pump modular units are mounted on an inner cavity of the pump body along the axis, a serial multi-stage pump is formed, a channel leading to a low-pressure zone of the next-stage modular unit is manufactured in a high-pressure zone of the previous-stage modular unit, so that the pressure of the pump is increased stage by stage, and the higher the stage is, the higher the pressure is; each modular unit comprises pump chamber assembly and a rotor assembly; and arc-shaped trilateral equal-width cam groove plates are used as guiding mechanisms for the blades, the rotor and two side plates are connected into a whole to rotate synchronously, thus, during operation, heating caused by the fact that end surfaces of the blades rub against side surfaces at the high speed can be avoided, a delivered medium cannot be gasified, vibration and noises produced by liquid trapping can be avoided, and the novel blade pump can be used for delivering oil and water. The pump is high in self-priming capacity, capable of running stably, long in service life, high in universality degree and convenient to maintain, and the efficiency can be 70% or above.

Description

Vane type multi-stage booster immersible pump

Technical field

The present invention relates to a kind of displacement pump, particularly vane type multi-stage booster immersible pump.

Background technology

Currently known is all multistage centrifugal pump by commonly used deep submersible pump, if " OJ " type series well is with latent Water pump, but its shortcoming existed is the most clearly, and the single-stage lift of centrifugal pump is the highest, it is desirable to improve lift, it is necessary to increase progression, Therefore, centrifugal deep submersible pump must be multistage pump, but multistage pump reach certain progression after because just being restricted by pump shaft rigidity Cannot be further added by progression, additionally, progression is the most, axial force is the biggest, therefore constrains the raising of discharge pressure.

The vane pump of positive displacement has the highest efficiency, and single-stage lift is high, does not has axial force, but nobody is used as so far Immersible pump, to there is following two defect in this relevant with it, and one is the outer face of blade and the inner surface of the pump housing and the two of blade Side and left and right two static side plates all produce high-speed friction, cause heating, even make transported medium produce vaporization；Two Being the closing space surrounded by rotor outer circle, pump housing inner chamber and two blades, its volume constantly produces change in operation process Change, when volume from large to small time, tired liquid situation easily occurs, due to liquid Incoercibility, unnecessary liquid quilt from gap Force extrusion, thus produce noise and vibration., so, traditional blades pump may be only available for carrying the oil product that lubricity is good, and Cannot be applicable to carry the water that lubricity is poor, therefore, vane pump is commonly used for oil pump, it is impossible to as water pump.

Summary of the invention

It is an object of the invention to: the shortcoming existed for above-mentioned vane pump, propose a kind of can be with multi-stage booster, blade Will not abrasion, vane type multi-stage booster immersible pump that tired liquid will not be produced.

In order to achieve the above object, vane type multi-stage booster immersible pump of the present invention, by the pump housing 1, biasing rotor 2 and turn The sliding blade 3 joined of the radial slot of son 2 and the pump shaft 4 bonded with described rotor 2 form, and it is characterized in that described pump Body 1 inner chamber is along axis equipped with multiple vane pump modular units 5, and described vane pump modular unit 5 is by pump chamber assembly 6 and rotor Assembly 7 two large divisions forms, and described pump chamber assembly 6 is by pump chamber is divided into low-pressure area and the upper cut water 8 of higher-pressure region, lower cut water 9 And the front dividing plate 10 being fixedly mounted with both is formed with rear bulkhead 11, described front dividing plate 10 and rear bulkhead 11 are towards the inner side of rotor 2 It is equipped with the arc triangle constant breadth cam frid 12 coaxial with rotor 2；Described rotor assembly 7 is by rotor 2 and is packed in described The blade 3 that rotor 2 both sides two side plates 13 of synchronous rotary and multiple cunning fit in rotor 2 radial slot is formed, described The inner both sides of blade 3 are shaped with coaxial rotating shaft 14, the rotating shaft 14 of the inner both sides of described blade 3 be respectively inserted in described front dividing plate 10 with In the groove of the arc triangle constant breadth cam frid 12 on rear bulkhead 11, described front dividing plate 10 is shaped with passage 23, described rear bulkhead Passage 24, described pump shaft 4 and the projecting shaft direct connection of submersible motor 18 it is shaped with on 11.

The inner side of the described upper cut water 8 in the technology of the present invention solution can be shaped with the arc surface 15 coaxial with rotor 2, The radius of described arc surface 15 can be equal with described blade 3 radius during overhang maximum from the radial slot of rotor 2；Institute The width stating cut water 8 can correspond to 60 ° of central angles in rotor 2 axle center.

The inner side of the described lower cut water 9 in the technology of the present invention solution can be shaped with rotor 2 with the arc surface of radius 16, the width of described lower cut water 9 can correspond to 60 ° of central angles in rotor 2 axle center.

Described upper cut water 8 and the two sides of lower cut water 9 in the technology of the present invention solution can be equipped with multiple small balls 17。

The technical scheme is that at the pump housing 1 inner chamber along axis equipped with multiple vane pump modular units 5, described each Vane pump modular unit 5 is made up of with rotor assembly 7 two large divisions pump chamber assembly 6,

Wherein pump chamber assembly 6 is the stationary part being arranged in the pump housing 1, and rotor assembly 7 is the machinery of pump.

The movement in the radial slot of rotor 2 of the said structure Leaf is the control by arc triangle constant breadth cam frid 12 System, the maximum overhang of blade is controlled, now outside blade by the arc surface that radius in arc triangle constant breadth cam groove is R2 It is accurate matched in clearance between the arc surface 15 of end face and upper cut water 8, between them, does not produce friction；Additionally, two side plates 13 are fixedly mounted with rotor 2 and to be integrated and synchronous rotary, rotor 2 band moving vane 3 synchronous rotary again, therefore, and two side plates 13 and blade 3 Basic synchronization rotates, and only produces a small amount of relative displacement, do not produce high-speed friction between two sides and the biside plate of blade 3, therefore This also will not generate heat.

By rotor 2 external cylindrical surface, upper cut water 8 arc surface 15 and two blades between the closing space that surrounded of angle In operation process, its volume will not change, and reason is the arc surface 15 of upper cut water 8 and rotor 2 external cylindrical surface is Concentric circular, two interlobate angles are fixing, and when therefore two blades rotate, the size of closed volume is constant fixed number, no Tired liquid phenomenon can occur.And this two arc surface is the most concentric in traditional blades pump, so when two blades rotate, its volume is wanted There is constantly change, when volume from large to small time, necessarily lead to tired liquid phenomenon.

It is shaped with passage 23 on front dividing plate 10 in modular unit, rear bulkhead 11 is shaped with passage 24, by this Structure design can make the medium output entrance next stage unit after pressurizeing in previous stage unit pressurize again, carries the most step by step High pressure, forms vane type multi-stage booster immersible pump.

The positive effect of the present invention is；

1. at the pump housing 1 inner chamber along axis equipped with multiple vane pump modular units, and on the front dividing plate 10 of each unit make Having passage 23, rear bulkhead 11 is shaped with passage 24, the medium after such structure can make the pressurization of previous stage unit inputs next Level unit pressurizes again, can Multi-stage lifting pressure, form that a kind of flow is identical and pressure can have different grades of vane type Multi-stage booster immersible pump, makes product reach variation, meets the user's different demands to pressure, such structure, only needs more Changing the pump housing and the pump shaft of different length, other parts are all general, and the generalization degree of product is high, produce week Phase can substantially shorten, and production cost can substantially reduce.

2. the present invention is modularized design, under conditions of pump housing diameter is identical, as long as changing the width of vane pump module, Different flows, namely the Multiple Sinking Pump of acquisition different flow can be obtained, expand range of flow and the pressure limit of pump.

3. the vane type multi-stage booster immersible pump of the present invention has two-way liquor charging function, and motor carries out liquor charging when rotating forward, electricity When machine is reverse, drainage screen can be carried out, it is not necessary to shut down disassembly, cleaning.

4. outer face and the two sides of blade 3 are on-stream less than rubbing, will not generate heat, and will not make transported medium vapour Change.

5. pump is on-stream does not produce because of liquid phenomenon, had both eliminated noise and vibration further improves efficiency, and Operate steadily, service life long.

Accompanying drawing explanation

Fig. 1 is the structure chart of the embodiment of the present invention.

Fig. 2 is the A-A sectional view of Fig. 1.

Fig. 3 is the B-B sectional view of Fig. 1.

Fig. 4 is the C-C sectional view of Fig. 1.

Fig. 5 is the D-D sectional view of Fig. 1.

Fig. 6 is the structure chart of vane pump modular unit 5.

Fig. 7 is the E-E sectional view of Fig. 6.

Fig. 8 is the F-F sectional view of Fig. 6.

Fig. 9 is the top view of Fig. 6.

Figure 10 is the structure chart of pump chamber assembly 6.

Figure 11 is the G-G sectional view of Figure 10.

Figure 12 is the H-H sectional view of Figure 10.

Figure 13 is the top view of Figure 10.

Figure 14 is the structure chart of rotor assembly.

Figure 15 is the I-I sectional view of Figure 14.

Figure 16 is the J-J sectional view of Figure 14.

Figure 17 is the outline drawing that two vane pump modular units 5 connect together.

Figure 18 is the structure chart on upper cut water equipped with small ball 17.

Detailed description of the invention

Fig. 1 is the structure chart of the embodiment of the present invention, and Fig. 2 is the A-A sectional view of Fig. 1, and Fig. 3 is the B-B sectional view of Fig. 1, Fig. 4 Being the C-C sectional view of Fig. 1, Fig. 5 is the D-D sectional view of Fig. 1.

Figure shows: with suction inlet 21 and outlet 22 the pump housing 1 by motor link span 19 directly and submersible motor The flange coupling of 18, the pump housing 1 lower end is packed on pump seat 20, the pump housing 1 inner chamber along axis equipped with four vane pump modular units 5, each modular unit 5 is made up of with rotor assembly 7 two large divisions pump chamber assembly 6, and pump chamber assembly 6 is by upper cut water 8, lower cut water 9, front dividing plate 10 is formed with four parts such as rear bulkheads 11, and they are solidly installed, and pump chamber is divided by upper cut water 8 with lower cut water 9 Being divided into low-pressure area and higher-pressure region, front dividing plate 10 and rear bulkhead 11 are equipped with the circular arc three coaxial with rotor 2 towards the inner side of rotor 2 Limit shape constant breadth cam frid 12；Rotor assembly 7 is made up of 2, two side plates 13 of rotor and blade 3, two side plates 13 and turning Son 2 is solidly installed, and blade 3 is movable in the radial slot of rotor 2, and the both sides of each blade 3 the inner are shaped with coaxial rotating shaft 14, should The rotating shaft 14 of both sides is respectively inserted in the groove of the arc triangle constant breadth cam frid 12 on front dividing plate 10 and rear bulkhead 11, blade The motion of 3 is controlled by arc triangle constant breadth cam groove.

Pump shaft 4 and the projecting shaft direct connection of submersible motor 18, when motor is rotated by pump shaft 4 rotor driven 2, each blade 3 While rotating with rotor 2, under the control of arc triangle constant breadth cam groove, in the radial slot of rotor 2, make reciprocal fortune Dynamic, medium is transported to higher-pressure region from water inlet by low-pressure area.

It is shaped with passage 23 on front dividing plate 10 in pump chamber modular unit 6, rear bulkhead 11 is shaped with passage 24, by this Plant structure design can make to export the low of entrance next stage unit after the medium premenstrual primary unit pressurization that water inlet 21 sucks Nip, by inputting next stage again after pressurization until outlet 22, improves pressure the most step by step, forms vane type multi-stage booster and dives Water pump.

Fig. 6 is the structure chart of vane pump modular unit 5, and Fig. 7 is the E-E sectional view of Fig. 6, and Fig. 8 is the F-F section view of Fig. 6 Figure, Fig. 9 is the top view of Fig. 6.

In figure, display module unit 5 is made up of pump chamber assembly 6 and rotor assembly 7 two parts, and wherein pump chamber assembly 6 is fixedly mounted with At the pump housing 1 inner chamber, being stationary part, rotor assembly 7 is to be driven by pump shaft 4 to rotate in pump chamber, by blade 3 by low-pressure area Medium is transported to higher-pressure region.

Figure 10 is the structure chart of pump chamber assembly 6, and Figure 11 is the G-G sectional view of Figure 10, and Figure 12 is the H-H sectional view of Figure 10, Figure 13 is the top view of Figure 10.

Figure shows: four parts such as upper cut water 8, lower cut water 9, front dividing plate 10 and rear bulkhead 11 pass through keeper and firm Part is solidly installed, wherein before dividing plate 10 and rear bulkhead 11 be equipped with arc triangle constant breadth cam groove towards the inner side of rotor 2 Plate 12, this frid 12 is shaped with the groove of arc triangle constant breadth cam, and the geometric center of this groove is same with the axis of rotor The heart, the advantage of arc triangle constant breadth cam is: cam contour line all surrounded by circular arc, NC Machining Program is simple； The pressure angle of cam is always zero, there is not self-locking problem；Driven member velocity variations obeys continuous function, without rigid shock, fortune Dynamic characteristic is relatively reasonable.It is shaped with passage 23 on front dividing plate 10, rear bulkhead 11 is shaped with passage 24.

Figure 14 is the structure chart of rotor assembly, and Figure 15 is the I-I sectional view of Figure 14, and Figure 16 is the J-J sectional view of Figure 14.

Figure shows: on rotor 2, be shaped with multiple uniform radial slot, equipped with movable blade 3, blade 3 in radial slot Inner both sides are shaped with coaxial rotating shaft 14；Rotor 2 and two side plates 13 are solidly installed and synchronous rotary, therefore carry when pump shaft 4 When dynamic rotor 2 rotates, blade 3 and side plate 13 will not produce high-speed friction.

Figure shows: in previous stage modular unit in the passage 24 on rear bulkhead 11 and next stage modular unit before dividing plate 10 Passage 23 be combined into " S " font passage, the High voltage output of previous stage enters the low pressure of next stage through " S " font passage District, pressurized after be input to again next stage, the most repeatedly, until output.

Figure 18 is the structure chart on upper cut water equipped with small ball 17

It is when vane pump starts in the both sides of upper and lower cut water equipped with the purpose of small ball 17, it is possible to reduce cut water and side Friction between plate 13, after pump works well, side plate can keep pressure balance automatically, and the gap making both sides is equal.

The present invention is displacement pump, has the strongest self-priming performance, outside decapacitation conveying water, it may also be used for transportation concentration is higher or viscous Spend higher medium conveying, additionally, blade stretches in the rotor, there is anti-winding function, can be used as high-lift submersible sewage pump.

Claims

1. a vane type multi-stage booster immersible pump, is joined by the rotor (2) of the pump housing (1), biasing is sliding with the radial slot of rotor (2) Blade (3) and and described rotor (2) bonded pump shaft (4) composition, it is characterised in that: the described pump housing (1) inner chamber is along axle Traditional thread binding have multiple vane pump modular unit (5), and described vane pump modular unit (5) is by pump chamber assembly (6) and rotor assembly (7) two large divisions's composition, described pump chamber assembly (6) is by pump chamber is divided into low-pressure area and the upper cut water (8) of higher-pressure region, lower cut water (9) the front dividing plate (10) and with both being fixedly mounted with is formed with rear bulkhead (11), described front dividing plate (10) and rear bulkhead (11) towards The inner side of rotor (2) is equipped with arc triangle constant breadth cam frid (12) coaxial with rotor (2), described rotor assembly (7) By rotor (2) and be packed in described rotor (2) both sides two side plates (13) of synchronous rotary and multiple cunning fits over rotor (2) blade in radial slot (3) is formed, and the inner both sides of described blade (3) are shaped with coaxial rotating shaft (14), described blade (3) The rotating shaft (14) of inner both sides is respectively inserted in described front dividing plate (10) and the arc triangle constant breadth cam groove on rear bulkhead (11) In the groove of plate (12), described front dividing plate (10) is shaped with passage (23), and described rear bulkhead (11) is shaped with passage (24), described pump shaft (4) with the projecting shaft direct connection of submersible motor (18).

Vane type multi-stage booster immersible pump the most according to claim 1, it is characterised in that: the inner side of described upper cut water (8) Being shaped with the arc surface (15) coaxial with rotor (2), the radius of described arc surface (15) and described blade (3) are from the footpath of rotor (2) In groove, radius during overhang maximum is equal, and the width of described upper cut water (8) is corresponding to 60 ° of centers in rotor (2) axle center Angle.

Vane type multi-stage booster immersible pump the most according to claim 1, it is characterised in that: the inner side of described lower cut water (9) Being shaped with rotor (2) with the arc surface (16) of radius, the width of described lower cut water (9) is corresponding to 60 ° of centers in rotor (2) axle center Angle.

4. according to the vane type multi-stage booster immersible pump described in Claims 2 or 3, it is characterised in that: described upper cut water (8) and under The two sides of cut water (9) are equipped with multiple small balls (17).