CN107542673A - A kind of high-low pressure separates closed type immersible pump - Google Patents
A kind of high-low pressure separates closed type immersible pump Download PDFInfo
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- CN107542673A CN107542673A CN201710981358.0A CN201710981358A CN107542673A CN 107542673 A CN107542673 A CN 107542673A CN 201710981358 A CN201710981358 A CN 201710981358A CN 107542673 A CN107542673 A CN 107542673A
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- low pressure
- dynamic sealing
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- pump
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Abstract
The invention discloses a kind of immersible pump, particularly a kind of high-low pressure separation closed type immersible pump, including water pump cover, pump motor, impeller and high-low pressure separation seal assembly, separating in the water pump cover has pump motor accommodating chamber and impeller accommodating chamber, the first demarcation strip between the pump motor accommodating chamber and impeller accommodating chamber is located at the centre of high-low pressure separation seal assembly, and its center offers axis hole, impeller is placed in impeller accommodating chamber, pump motor is placed in pump motor accommodating chamber, its motor shaft is after axis hole and high-low pressure separation seal assembly with impeller in drive connection shape, the high-low pressure separation seal assembly includes low pressure dynamic sealing, high pressure dynamic sealing and the pressure relief device between low pressure dynamic sealing and high pressure dynamic sealing.The present invention, which solves existing immersible pump and can not prevented completely in use, is discharged liquid medium into the technology drawback inside pump motor, and it has and can prevent liquid medium in use completely into inside pump motor, the advantages of to extend pump motor service life.
Description
Technical field
Conveyed the present invention relates to a kind of liquid medium for petrochemical industry separated with a kind of high-low pressure of field irrigation it is close
Envelope type immersible pump.
Background technology
Pump is the visual plant of pumped (conveying) medium, is the main tool of plumbing, and the liquid for being widely used in petrochemical industry is situated between
Matter conveys and field of farm irrigation.
The species of pump is a lot, and immersible pump is one kind therein.Immersible pump at work, the water in its pump housing and the pump housing
Pump motor needs all or part of immerse to be discharged in liquid medium, thus in pump motor motor shaft with shaft hole matching
Sealing property quality is to influence the key of whole immersible pump service life.
A kind of Double-sealing dry submersible pump is provided in the Chinese issued patents document of Patent No. 00212641.7, is wrapped
Include body 1, the pump housing 2, motor 3, motor shaft 4, impeller 5, bracket 6, iron core 7, dual-seal component and seal receptacle 8.Body 1 it is upper,
Lower end is respectively fixed with upper end cover 9 and bottom end cover 10, and motor 3 is arranged in body 1, and impeller 5 is arranged in the pump housing 2, the He of body 1
The pump housing 2 is connected by bracket 6, and bearing groove 11 and 12 is respectively equipped with the lower surface of upper end cover 9 and the upper surface of bottom end cover 10,
The bottom end cover of bottom end cover 10 is provided with annular groove 13, and annular groove 13 surrounds closed chamber 14 with motor shaft 4, divided on motor shaft 4
Upper bearing (metal) 15 and lower bearing 16 are not equiped with；The axle sleeve of upper bearing (metal) 15 is fixed in bearing groove 11, and the axle sleeve of lower bearing 16 is fixed
In bearing groove 12, in the bottom land of the bearing groove 11 of upper end cover 9, with the thrust bearing 17 of 15 provided beside of upper bearing (metal) one, thrust shaft
The 17 upper end ends for being fixed on motor shaft 4 are held, to bear axial compressive force.Seal receptacle 8 is fixed on bottom end cover 10 by bolt 18
Lower surface on, upper and lower groove 19,20 is respectively equipped with the upper and lower end face of seal receptacle 8, dual-seal component is by two dynamic sealings
Ring 21,22, spring 23 and two stationary seal rings 24,25 are formed, and two rotary packing rings 21 and 22 and spring 23 are sleeved on closed chamber
On motor shaft 4 in 14, two stationary seal rings 24 and 25 are separately positioned in groove 19 and 20, and are socketed on the motor shaft (4), bullet
Spring 23 is arranged between two rotary packing rings 21 and 22, and rotary packing ring 21 is withstood on the roof of closed chamber 14, makes dynamic sealing
For the top pressure of ring 22 on stationary seal ring 24, it has the advantages that good sealing effect.
But the dual-seal component being made up of in said structure upper and lower rotary packing ring, spring and two stationary seal rings
Motor shaft and the sealing at shaft hole matching, increase in pump motor can be lifted to be discharged liquid medium and enter inside pump motor
Difficulty, can not prevent being discharged liquid medium and oozed dual-seal component into inside pump motor completely.
The content of the invention
One kind is provided and can be prevented completely in use the invention aims to solve above-mentioned the deficiencies in the prior art
A kind of high-low pressure separation closed type immersible pump that high-pressure liquid medium enters inside pump motor.
To achieve these goals, a kind of high-low pressure separation closed type immersible pump designed by the present invention, including water pump shell
Body, pump motor, impeller and high-low pressure separation seal assembly, the interior separation of the water pump cover have pump motor accommodating chamber and impeller
Accommodating chamber, the first demarcation strip between the pump motor accommodating chamber and impeller accommodating chamber are located at high-low pressure separation seal assembly
Centre, and its center offers axis hole, and impeller is placed in impeller accommodating chamber, and pump motor is placed in pump motor accommodating chamber
Interior, its motor shaft is close in drive connection shape, the high-low pressure separation with impeller after axis hole and high-low pressure separation seal assembly
Sealing assembly includes a low pressure dynamic sealing, at least one high pressure dynamic sealing and positioned at adjacent low pressure dynamic sealing and high pressure dynamic sealing
Between pressure relief device.
Above-mentioned low pressure dynamic sealing and high pressure dynamic sealing can be lip backbone sealing ring or mechanical sealing circle etc., simultaneously
Above-mentioned lip backbone sealing ring or mechanical sealing circle are the common knowledges of those skilled in the art, therefore are seldom done herein in detail
It is thin to introduce.
Preferably, the high-low pressure separation is close by one as a kind of high-low pressure separation closed type immersible pump provided by the present invention
Sealing assembly includes a low pressure dynamic sealing and a high pressure dynamic sealing, low pressure dynamic sealing therein are fixed on the upper edge of axis hole
Place, high pressure dynamic sealing are fixed at the lower opening's edge of axis hole, and the pressure relief device refers at least offer one on the first demarcation strip
The individual pressure release through hole to be connected with shaft hole inner wall.The preferred scheme a small amount of liquid medium in specifically used is arranged in immersible pump itself
It was located at axle after oozing high pressure dynamic sealing under pressure effect after the superposition of both pressure caused by water and immersible pump diving hydraulic pressure
In hole, at this moment above-mentioned a small amount of liquid medium can be in the presence of motor shaft revolving force, out of, pressure release through hole on the first demarcation strip
Be thrown out of, thoroughly avoid above-mentioned a small amount of liquid medium further ooze it is too low press sealing after enter inside pump motor, influence water
The service life of pump motor.
Another as a kind of high-low pressure separation closed type immersible pump provided by the present invention is preferred, the high-low pressure separation
Seal assembly includes a low pressure dynamic sealing and a high pressure dynamic sealing, and the front end face of the pump motor housing is in central elevation
Shape, the bump in above-mentioned pump motor housing forward end face and the motor shaft through the bump run through axis hole jointly, should
Bracket is further fixed on the front end face inwall of pump motor housing, the bracket and bump are symmetrical, and between the two
Liquid media containment chamber is formed, high pressure dynamic sealing is fixed on the bump outer surface of pump motor housing, and the low pressure is moved
Sealing is fixed on bracket outer surface, and the pressure relief device refers at least offer a pressure release through hole on motor shaft, and this is let out
The one end and liquid media containment chamber for pressing through hole penetrate, and its other end runs through the front end face of motor shaft.The preferred scheme is specific
A small amount of liquid medium is after the superposition of both pressure caused by immersible pump itself draining and immersible pump diving hydraulic pressure in use
It was located at liquid media containment intracavitary after high pressure dynamic sealing is oozed under pressure effect, at this moment above-mentioned a small amount of external liquid media can be in electricity
In the presence of arbor revolving force, it is thrown out of out of pressure release through hole on motor shaft, thoroughly avoids above-mentioned a small amount of liquid medium from entering one
Step ooze it is too low enter after pressing sealing inside pump motor, influence the service life of pump motor.
A kind of high-low pressure that the present invention obtains separates closed type immersible pump, is pressed in its structure positioned at low pressure dynamic sealing and height
Pressure relief device between sealing can will ooze a small amount of liquid medium after high pressure dynamic sealing and exclude, and thoroughly avoid above-mentioned a small amount of liquid
Medium further ooze it is too low enter after pressing sealing inside pump motor, therefore a kind of separation of high-low pressure is close provided in the present invention
The service life length of envelope type immersible pump, it is good in economic efficiency；The low pressure in the present invention in high-low pressure separation seal assembly is moved close simultaneously
Envelope and high pressure dynamic sealing can be lip backbone sealing ring or mechanical sealing circle etc., therefore simple in construction, and stability is high.
Brief description of the drawings
Fig. 1 is a kind of structural representation of high-low pressure separation closed type immersible pump in embodiment 1；
Fig. 2 is the close-up schematic view at A in Fig. 1；
Fig. 3 is schematic diagram of a kind of high-low pressure separation closed type immersible pump in specific works in embodiment 1；
Fig. 4 is a kind of structural representation of high-low pressure separation closed type immersible pump in embodiment 1；
Fig. 5 is the close-up schematic view at B in Fig. 4；
Fig. 6 is schematic diagram of a kind of high-low pressure separation closed type immersible pump in specific works in embodiment 2.
Fig. 7 is a kind of structural representation of high-low pressure separation closed type immersible pump in embodiment 3.
In figure：Water pump cover 1, pump motor accommodating chamber 1-1, impeller accommodating chamber 1-2, pump motor 2, pump motor housing
2-1, bump 2-2, motor shaft 3, the first demarcation strip 4, impeller 5, low pressure dynamic sealing 6, high pressure dynamic sealing 7, pressure release through hole 8,
Axis hole 9, upper edge 10, lower opening's edge 11, bracket 12, liquid media containment chamber 13, the second demarcation strip 14.
Embodiment
The present invention is further described with reference to the accompanying drawings and examples.
Embodiment 1：
As depicted in figs. 1 and 2, a kind of high-low pressure separation closed type immersible pump that the present embodiment provides, including water pump cover 1, water
Pump motor 2, impeller 5 and high-low pressure separation seal assembly, the interior separation of the water pump cover 1 have pump motor accommodating chamber 1-1 and leaf
Accommodating chamber 1-2 is taken turns, the first demarcation strip 4 between the pump motor accommodating chamber 1-1 and impeller accommodating chamber 1-2 is positioned at high-low pressure point
From the centre of seal assembly, and its center offers axis hole 9, and impeller 5 is placed in impeller accommodating chamber 1-2, pump motor 2
It is placed in pump motor accommodating chamber 1-1, its motor shaft 3 is after axis hole 9 and high-low pressure separation seal assembly with impeller 5 in transmission
Shape is connected, the high-low pressure separation seal assembly includes 6, high pressure dynamic sealings 7 of a low pressure dynamic sealing and positioned at low pressure
Pressure relief device between dynamic sealing 6 and high pressure dynamic sealing 7, low pressure dynamic sealing 6 are fixed at the upper edge 10 of axis hole 9, the height
Sealing is pressed 7 to be fixed at the lower opening's edge 11 of axis hole 9, the pressure relief device refer to offer on the first demarcation strip 4 one with
The pressure release through hole 8 that the inwall of axis hole 9 connects.
As shown in figure 3, the present embodiment a small amount of liquid medium in specifically used is being pressed caused by immersible pump itself draining
Oozed under pressure effect after power and immersible pump diving both hydraulic pressure superposition after high pressure dynamic sealing 7 in axis hole 9, at this moment on
A small amount of liquid medium is stated to be thrown out of out of pressure release through hole 8 on the first demarcation strip 4 in the presence of the revolving force of motor shaft 3, it is thorough
Bottom avoid above-mentioned a small amount of liquid medium further ooze it is too low press sealing 6 after enter inside pump motor 2, influence pump motor 2
Service life.
Embodiment 2：
As shown in Figure 4 and Figure 5, a kind of high-low pressure separation closed type immersible pump that the present embodiment provides, including water pump cover 1, water
Pump motor 2, impeller 5 and high-low pressure separation seal assembly, the interior separation of the water pump cover 1 have pump motor accommodating chamber 1-1 and leaf
Accommodating chamber 1-2 is taken turns, the first demarcation strip 4 between the pump motor accommodating chamber 1-1 and impeller accommodating chamber 1-2 is positioned at high-low pressure point
From the centre of seal assembly, and its center offers axis hole 9, and impeller 5 is placed in impeller accommodating chamber 1-2, pump motor 2
It is placed in pump motor accommodating chamber 1-1, the front end face of the pump motor housing 2-1 is in central elevation shape, above-mentioned pump motor
The bump 2-2 of housing 2-1 front end faces and motor shaft 3 through bump 2-2 run through axis hole 9 jointly, wherein electricity
Arbor 3 is in again drive connection shape with impeller 5, and bracket 12 is further fixed on pump motor housing 2-1 front end face inwall, described
Bracket 12 and bump 2-2 are symmetrical, and form liquid media containment chamber 13 between the two, the high-low pressure separation sealing
Component includes 6, high pressure dynamic sealings 7 of a low pressure dynamic sealing and between low pressure dynamic sealing 6 and high pressure dynamic sealing 7
Pressure relief device, high pressure dynamic sealing 7 are fixed on pump motor housing 2-1 bump 2-2 outer surfaces, and low pressure dynamic sealing 6 is solid
It is scheduled on the outer surface of bracket 12, the pressure relief device refers to offer a pressure release through hole 8 on motor shaft 3, the pressure release through hole 8
One end penetrated with liquid media containment chamber 13, its other end run through motor shaft 3 front end face.
As shown in fig. 6, the present embodiment is in specifically used, a small amount of liquid medium pressure caused by immersible pump itself draining with
And it was located at liquid media containment chamber 13 after under the pressure effect after immersible pump diving both hydraulic pressure superposition oozing high pressure dynamic sealing 7
Interior, at this moment above-mentioned external liquid media can be got rid of in the presence of the revolving force of motor shaft 3 out of pressure release through hole 8 on motor shaft 3
Go out, thoroughly avoid above-mentioned a small amount of liquid medium further ooze it is too low press sealing 6 after enter inside pump motor 2, influence water pump
The service life of motor 2.
Embodiment 3：
As shown in fig. 7, a kind of high-low pressure separation closed type immersible pump that the present embodiment provides, its general structure and embodiment 1 one
Cause, but the separation seal assembly of high-low pressure described in the present embodiment include a low pressure dynamic sealing 6 and two high pressure dynamic sealings 7 with
And the pressure relief device between adjacent low pressure dynamic sealing 6 and high pressure dynamic sealing 7, the 1-2 of impeller accommodating chamber described in the present embodiment
Inside is provided with the second demarcation strip 14, and above-mentioned two high pressure dynamic sealing 7 is respectively at the insertion of motor shaft 3 on second demarcation strip 14
Upper and lower opening along at, low pressure dynamic sealing 6 is fixed at the upper edge 10 of axis hole 9, and the pressure relief device refers in the first demarcation strip 4
On offer a pressure release through hole 8 to be connected with the inwall of axis hole 9.
Claims (3)
1. a kind of high-low pressure separates closed type immersible pump, including water pump cover (1), pump motor (2), impeller (5) and height
Low pressure separates seal assembly, and separating in the water pump cover (1) has pump motor accommodating chamber (1-1) and impeller accommodating chamber (1-2),
The first demarcation strip (4) between the pump motor accommodating chamber (1-1) and impeller accommodating chamber (1-2) is located at high-low pressure separation sealing
The centre of component, and its center offers axis hole (9), and impeller (5) is placed in impeller accommodating chamber (1-2), pump motor
(2) be placed in pump motor accommodating chamber (1-1), its motor shaft (3) after axis hole (9) and high-low pressure separation seal assembly with leaf
(5) are taken turns in drive connection shape, it is characterised in that：High-low pressure separation seal assembly includes a low pressure dynamic sealing (6), at least
One high pressure dynamic sealing (7) and the pressure relief device between adjacent low pressure dynamic sealing (6) and high pressure dynamic sealing (7).
A kind of 2. high-low pressure separation closed type immersible pump according to claim 1, it is characterised in that：The high-low pressure separation
Seal assembly includes a low pressure dynamic sealing（6）With a high pressure dynamic sealing（7）, low pressure dynamic sealing (6) therein is fixed on axle
Upper edge (10) place in hole (9), high pressure dynamic sealing (7) are fixed on lower opening's edge (11) place of axis hole (9), and the pressure relief device refers to
A pressure release through hole (8) to be connected with axis hole (9) inwall is at least offered on the first demarcation strip (4).
A kind of 3. high-low pressure separation closed type immersible pump according to claim 1, it is characterised in that：The high-low pressure separation
Seal assembly includes a low pressure dynamic sealing（6）With a high pressure dynamic sealing（7）, the pump motor housing（2-1）Front end
Face is in central elevation shape, above-mentioned pump motor housing（2-1）The bump (2-2) of front end face and through the bump
The motor shaft (3) of (2-2) runs through axis hole (9), the pump motor housing jointly（2-1）Front end face inwall on be further fixed on bracket
(12), the bracket (12) and bump (2-2) are symmetrical, and form liquid media containment chamber (13) between the two, high
Press sealing (7) and be fixed on pump motor housing（2-1）Bump (2-2) outer surface on, the low pressure dynamic sealing (6) is solid
It is scheduled on bracket (12) outer surface, the pressure relief device refers at least offer a pressure release through hole (8) on motor shaft (3),
One end of the pressure release through hole (8) penetrates with liquid media containment chamber (13), and its other end runs through the front end face of motor shaft (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710981358.0A CN107542673A (en) | 2017-10-20 | 2017-10-20 | A kind of high-low pressure separates closed type immersible pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710981358.0A CN107542673A (en) | 2017-10-20 | 2017-10-20 | A kind of high-low pressure separates closed type immersible pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107542673A true CN107542673A (en) | 2018-01-05 |
Family
ID=60967180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710981358.0A Pending CN107542673A (en) | 2017-10-20 | 2017-10-20 | A kind of high-low pressure separates closed type immersible pump |
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| CN (1) | CN107542673A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110206740A (en) * | 2019-06-19 | 2019-09-06 | 徐州亚泰电机有限公司 | A kind of drying type electric submersible pump with segmentation waterproof system |
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|---|---|---|---|---|
| US4583923A (en) * | 1984-02-10 | 1986-04-22 | Hughes Tool Company | Bellows latching mechanism for a submersible pump |
| CN1752452A (en) * | 2004-09-25 | 2006-03-29 | 王庆武 | Vertical pump for mine |
| CN203248370U (en) * | 2013-05-23 | 2013-10-23 | 君禾泵业股份有限公司 | Novel high-low pressure separating and sealing type sinking pump |
| CN204025090U (en) * | 2014-08-25 | 2014-12-17 | 广东瑞荣泵业有限公司 | Integrated well submersible pump |
| CN204312365U (en) * | 2014-08-25 | 2015-05-06 | 广东瑞荣泵业有限公司 | Integration oil-filled type well submersible pump |
| CN205858704U (en) * | 2016-08-17 | 2017-01-04 | 江苏展宏灌排科技有限公司 | A kind of novel built-in type mine explosion-suppression Multiple Sinking Pump |
-
2017
- 2017-10-20 CN CN201710981358.0A patent/CN107542673A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4583923A (en) * | 1984-02-10 | 1986-04-22 | Hughes Tool Company | Bellows latching mechanism for a submersible pump |
| CN1752452A (en) * | 2004-09-25 | 2006-03-29 | 王庆武 | Vertical pump for mine |
| CN203248370U (en) * | 2013-05-23 | 2013-10-23 | 君禾泵业股份有限公司 | Novel high-low pressure separating and sealing type sinking pump |
| CN204025090U (en) * | 2014-08-25 | 2014-12-17 | 广东瑞荣泵业有限公司 | Integrated well submersible pump |
| CN204312365U (en) * | 2014-08-25 | 2015-05-06 | 广东瑞荣泵业有限公司 | Integration oil-filled type well submersible pump |
| CN205858704U (en) * | 2016-08-17 | 2017-01-04 | 江苏展宏灌排科技有限公司 | A kind of novel built-in type mine explosion-suppression Multiple Sinking Pump |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110206740A (en) * | 2019-06-19 | 2019-09-06 | 徐州亚泰电机有限公司 | A kind of drying type electric submersible pump with segmentation waterproof system |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180105 |
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