CN203248370U - Novel high-low pressure separating and sealing type sinking pump - Google Patents
Novel high-low pressure separating and sealing type sinking pump Download PDFInfo
- Publication number
- CN203248370U CN203248370U CN 201320285872 CN201320285872U CN203248370U CN 203248370 U CN203248370 U CN 203248370U CN 201320285872 CN201320285872 CN 201320285872 CN 201320285872 U CN201320285872 U CN 201320285872U CN 203248370 U CN203248370 U CN 203248370U
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- low pressure
- pump motor
- impeller
- sealing
- pressure
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Abstract
The utility model discloses a sinking pump, in particular to a novel high-low pressure separating and sealing type sinking pump. The novel high-low pressure separating and sealing type sinking pump comprises a water pump shell, a water pump motor, an impeller and a high-low pressure separating and sealing component. A water pump motor containing cavity and an impeller containing cavity are arranged inside the water pump shell in a separating mode, a first separating plate between the water pump motor containing cavity and the impeller containing cavity is placed in the middle of the high-low pressure separating and sealing component, and a shaft hole is formed in the middle position of the first separating plate. The impeller is arranged inside the impeller containing cavity, the water pump motor is placed in the water pump motor containing cavity, a motor shaft penetrates through the shaft hole and the high-low pressure separating and sealing component and then is in transmission connection with the impeller, and the high-low pressure separating and sealing component comprises a low pressure dynamic seal, a high pressure dynamic seal and a pressure release device which is placed between the low pressure dynamic seal and the high pressure dynamic seal. The novel high-low pressure separating and sealing type sinking pump overcomes the defect that in the using process of an existing sinking pump, discharged liquid media can not be completely prevented from entering the inside of the water pump motor. The novel high-low pressure separating and sealing type sinking pump has the advantages that the liquid media can be completely prevented from entering the inside of the water pump motor in the using process, and therefore the service life of the water pump motor is prolonged.
Description
Technical field
The utility model relates to the Novel bunk pressure of a kind of liquid medium conveying for petrochemical industry and field irrigation and separates the sealed type submersible pump.
Background technique
Pump is the visual plant of fed sheet of a media, is the main tool of plumbing, and the liquid medium that is widely used in petrochemical industry is carried and the field irrigation field.
The kind of pump is a lot, and submersible pump is wherein a kind of.Submersible pump at work, the pump motor in its pump housing and the pump housing needs all or part of the immersion to be discharged in the liquid medium, so the sealability quality at motor shaft and shaft hole matching place is to affect the whole submersible pump key in working life in the pump motor.
The patent No. provides a kind of Double-sealing dry submersible pump for China of 00212641.7 has announced in the patent documentation, comprise body 1, the pump housing 2, motor 3, motor shaft 4, impeller 5, carriage 6, iron core 7, dual-seal component and sealing seat 8.The upper and lower end of body 1 is fixed with respectively upper end cap 9 and lower end cap 10, motor 3 is arranged in the body 1, impeller 5 is arranged in the pump housing 2, body 1 is connected by carriage 6 with the pump housing 2, be respectively equipped with bearing groove 11 and 12 on the upper-end surface of the lower end surface of upper end cap 9 and lower end cap 10, the lower end cap of lower end cap 10 is provided with annular groove 13, and annular groove 13 surrounds closed chamber 14 with motor shaft 4, is equiped with respectively upper bearing (metal) 15 and lower bearing 16 on the motor shaft 4; The axle sleeve of upper bearing (metal) 15 is fixed in the bearing groove 11, the axle sleeve of lower bearing 16 is fixed in the bearing groove 12, at the bottom land of the bearing groove 11 of upper end cap 9, install side by side the end, upper end that a thrust bearing 17, thrust bearing 17 are fixed on motor shaft 4 with upper bearing (metal) 15, in order to bear axial pressure.Sealing seat 8 is fixed on the lower end surface of lower end cap 10 by bolt 18, sealing seat 8 upper, be respectively equipped with on the lower end surface, low groove 19,20, dual-seal component is by two rotary packing rings 21,22, spring 23 and two stationary seal rings 24,25 consist of, two rotary packing rings 21 and 22 and spring 23 be sleeved on the motor shaft 4 in the closed chamber 14, two stationary seal rings 24 and 25 are separately positioned in groove 19 and 20, and be socketed on the motor shaft 4, 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, rotary packing ring 22 tops are pressed on the stationary seal ring 24, and it has the advantages such as good sealing effect.
But the dual-seal component that is made of upper and lower rotary packing ring, spring and two stationary seal rings in the said structure can only promote the sealing of motor shaft and shaft hole matching place in the pump motor, increase and to be discharged the difficulty that liquid medium enters pump motor inside, can not prevent fully to be discharged liquid medium infiltrate dual-seal component and to enter pump motor inside.
The model utility content
The purpose of this utility model is that a kind of Novel bunk pressure separation sealed type submersible pump that high-pressure liquid medium enters pump motor inside of in use stopping fully is provided in order to solve above-mentioned the deficiencies in the prior art.
To achieve these goals, the designed Novel bunk of the utility model is pressed and is separated the sealed type submersible pump, comprise water pump cover, pump motor, impeller separates black box with high low pressure, divide in the described water pump cover and be separated with pump motor receiving cavity and impeller receiving cavity, the first demarcation strip between described pump motor receiving cavity and the impeller receiving cavity is positioned at the centre that high low pressure separates black box, and its central position offers axis hole, impeller places in the impeller receiving cavity, pump motor places in the pump motor receiving cavity, its motor shaft is the shape that is in transmission connection with impeller after running through axis hole and high low pressure separation black box, and described high low pressure separates black box and comprises a low pressure motive sealing, at least one high pressure dynamic sealing and the pressure relief device between adjacent low pressure motive sealing and high pressure dynamic sealing.
Above-mentioned low pressure motive sealing and high pressure dynamic sealing can be lip backbone sealing ring or mechanical sealing circle etc., and above-mentioned lip backbone sealing ring or the mechanical sealing circle all is common practise of those skilled in the art simultaneously is therefore seldom be described in detail at this.
Press to separate of sealed type submersible pump as Novel bunk that the utility model provides preferred, described high low pressure separates black box and comprises a low pressure motive sealing and a high pressure dynamic sealing, low pressure motive sealing wherein is fixed on the upper edge place of axis hole, high pressure dynamic sealing is fixed on the lower opening's edge place of axis hole, and described pressure relief device refers to offer at least a pressure release through hole that connects with shaft hole inner wall on the first demarcation strip.This preferred version a small amount of liquid medium in concrete the use is being positioned at axis hole behind the infiltrate high pressure dynamic sealing under pressure that submersible pump self draining produces and the pressure-acting after both stacks of submersible pump diving hydraulic pressure, at this moment above-mentioned a small amount of liquid medium can be under the effect of motor shaft rotating force, be thrown out of in the pressure release through hole from the first demarcation strip, avoid thoroughly that the motive sealing of the further infiltrate low pressure of above-mentioned a small amount of liquid medium is laggard to enter pump motor inside, affect the working life of pump motor.
Press to separate another of sealed type submersible pump as Novel bunk that the utility model provides preferred, described high low pressure separates black box and comprises a low pressure motive sealing and a high pressure dynamic sealing, the front-end face of described pump motor housing is the central elevation shape, the bump of above-mentioned pump motor housing front-end face and the motor shaft that runs through this bump run through axis hole jointly, also be fixed with carriage on the front-end face inwall of this pump motor housing, described carriage and bump are symmetrical, and form the liquid medium receiving cavity between the two, high pressure dynamic sealing is fixed on the bump outer surface of pump motor housing, described low pressure motive sealing is fixed on the carriage outer surface, described pressure relief device refers to offer at least a pressure release through hole on motor shaft, one end of this pressure release through hole and liquid medium receiving cavity connect, and its other end runs through the front-end face of motor shaft.This preferred version a small amount of liquid medium in concrete the use is being positioned at the liquid medium receiving cavity behind the infiltrate high pressure dynamic sealing under pressure that submersible pump self draining produces and the pressure-acting after both stacks of submersible pump diving hydraulic pressure, at this moment above-mentioned a small amount of extraneous liquid medium can be under the effect of motor shaft rotating force, be thrown out of in the pressure release through hole from the motor shaft, avoid thoroughly that the motive sealing of the further infiltrate low pressure of above-mentioned a small amount of liquid medium is laggard to enter pump motor inside, affect the working life of pump motor.
The Novel bunk that the utility model obtains is pressed and is separated the sealed type submersible pump, a small amount of liquid medium behind the infiltrate high pressure dynamic sealing can be got rid of at the pressure relief device between low pressure motive sealing and the high pressure dynamic sealing in its structure, avoid thoroughly that the motive sealing of the further infiltrate low pressure of above-mentioned a small amount of liquid medium is laggard to enter pump motor inside, therefore institute's Novel bunk that provides is pressed the long service life of separation sealed type submersible pump in the utility model, and is good in economic efficiency; High low pressure separates in the black box in the utility model simultaneously low pressure motive sealing and high pressure dynamic sealing can be lip backbone sealing ring or mechanical sealing circle etc., and therefore simple in structure, stability is high.
Description of drawings
Fig. 1 is that Novel bunk is pressed the structural representation that separates the sealed type submersible pump among the embodiment 1;
Fig. 2 is the local enlarged diagram at A place among Fig. 1;
Fig. 3 is that Novel bunk is pressed the schematic diagram of separation sealed type submersible pump in specific works among the embodiment 1;
Fig. 4 is that Novel bunk is pressed the structural representation that separates the sealed type submersible pump among the embodiment 1;
Fig. 5 is the local enlarged diagram at B place among Fig. 4;
Fig. 6 is that Novel bunk is pressed the schematic diagram of separation sealed type submersible pump in specific works among the embodiment 2.
Fig. 7 is that Novel bunk is pressed the structural representation that separates the sealed type submersible pump among the embodiment 3.
Among the figure: water pump cover 1, pump motor receiving cavity 1-1, impeller receiving cavity 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 motive sealing 6, high pressure dynamic sealing 7, pressure release through hole 8, axis hole 9, upper edge 10, lower opening's edge 11, carriage 12, liquid medium receiving cavity 13, the second demarcation strip 14.
Embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
Embodiment 1:
As depicted in figs. 1 and 2, the Novel bunk that the present embodiment provides is pressed and is separated the sealed type submersible pump, comprise water pump cover 1, pump motor 2, impeller 5 separates black box with high low pressure, divide in the described water pump cover 1 and be separated with pump motor receiving cavity 1-1 and impeller receiving cavity 1-2, the first demarcation strip 4 between described pump motor receiving cavity 1-1 and the impeller receiving cavity 1-2 is positioned at the centre that high low pressure separates black box, and its central position offers axis hole 9, impeller 5 places in the impeller receiving cavity 1-2, pump motor 2 places in the pump motor receiving cavity 1-1, its motor shaft 3 is the shape that is in transmission connection with impeller 5 after running through axis hole 9 and high low pressure separation black box, described high low pressure separates black box and comprises a low pressure motive sealing 6, high pressure dynamic sealing 7 and the pressure relief device between low pressure motive sealing 6 and high pressure dynamic sealing 7, low pressure motive sealing 6 is fixed on upper edge 10 places of axis hole 9, described high pressure dynamic sealing 7 is fixed on lower opening's edge 11 places of axis hole 9, and described pressure relief device refers to offer a pressure release through hole 8 that connects with axis hole 9 inwalls at the first demarcation strip 4.
As shown in Figure 3, the present embodiment a small amount of liquid medium in concrete the use is being positioned at axis hole 9 behind the infiltrate high pressure dynamic sealing 7 under pressure that submersible pump self draining produces and the pressure-acting after both stacks of submersible pump diving hydraulic pressure, at this moment above-mentioned a small amount of liquid medium can be under the effect of motor shaft 3 rotating forces, be thrown out of in the pressure release through hole 8 from the first demarcation strip 4, avoid thoroughly that the further infiltrate low pressure of above-mentioned a small amount of liquid medium motive sealing 6 is laggard to enter pump motor 2 inside, affect the working life of pump motor 2.
Embodiment 2:
As shown in Figure 4 and Figure 5, the Novel bunk that the present embodiment provides is pressed and is separated the sealed type submersible pump, comprise water pump cover 1, pump motor 2, impeller 5 separates black box with high low pressure, divide in the described water pump cover 1 and be separated with pump motor receiving cavity 1-1 and impeller receiving cavity 1-2, the first demarcation strip 4 between described pump motor receiving cavity 1-1 and the impeller receiving cavity 1-2 is positioned at the centre that high low pressure separates black box, and its central position offers axis hole 9, impeller 5 places in the impeller receiving cavity 1-2, pump motor 2 places in the pump motor receiving cavity 1-1, the front-end face of described pump motor housing 2-1 is the central elevation shape, the bump 2-2 of above-mentioned pump motor housing 2-1 front-end face and the motor shaft 3 that runs through this bump 2-2 run through axis hole 9 jointly, wherein motor shaft 3 is the shape that is in transmission connection with impeller 5 again, also be fixed with carriage 12 on the front-end face inwall of this pump motor housing 2-1, described carriage 12 is symmetrical with bump 2-2, and form liquid medium receiving cavity 13 between the two, described high low pressure separates black box and comprises a low pressure motive sealing 6, high pressure dynamic sealing 7 and the pressure relief device between low pressure motive sealing 6 and high pressure dynamic sealing 7, high pressure dynamic sealing 7 is fixed on the bump 2-2 outer surface of pump motor housing 2-1, low pressure motive sealing 6 is fixed on carriage 12 outer surfaces, described pressure relief device refers to offer a pressure release through hole 8 at motor shaft 3, one end of this pressure release through hole 8 and liquid medium receiving cavity 13 connect, and its other end runs through the front-end face of motor shaft 3.
As shown in Figure 6, the present embodiment is in concrete the use, a small amount of liquid medium is being positioned at liquid medium receiving cavity 13 behind the infiltrate high pressure dynamic sealing 7 under pressure that submersible pump self draining produces and the pressure-acting after both stacks of submersible pump diving hydraulic pressure, at this moment above-mentioned extraneous liquid medium can be under the effect of motor shaft 3 rotating forces, be thrown out of in the pressure release through hole 8 from the motor shaft 3, avoid thoroughly that the further infiltrate low pressure of above-mentioned a small amount of liquid medium motive sealing 6 is laggard to enter pump motor 2 inside, affect the working life of pump motor 2.
Embodiment 3:
As shown in Figure 7, the Novel bunk that the present embodiment provides is pressed and is separated the sealed type submersible pump, its general structure is consistent with embodiment 1, but high low pressure described in the present embodiment separates black box and comprises a low pressure motive sealing 6 and two high pressure dynamic sealings 7 and the pressure relief device between adjacent low pressure motive sealing 6 and high pressure dynamic sealing 7, the receiving cavity of impeller described in the present embodiment 1-2 inside is provided with the second demarcation strip 14, above-mentioned two high pressure dynamic sealings 7 lay respectively at the upper and lower opening of motor shaft 3 perforations place on this second demarcation strip 14 along the place, low pressure motive sealing 6 is fixed on upper edge 10 places of axis hole 9, and described pressure relief device refers to offer a pressure release through hole 8 that connects with axis hole 9 inwalls at the first demarcation strip 4.
Claims (3)
1. a Novel bunk is pressed and is separated the sealed type submersible pump, comprise water pump cover (1), pump motor (2), impeller (5) separates black box with high low pressure, divide in the described water pump cover (1) and be separated with pump motor receiving cavity (1-1) and impeller receiving cavity (1-2), the first demarcation strip (4) between described pump motor receiving cavity (1-1) and the impeller receiving cavity (1-2) is positioned at the centre that high low pressure separates black box, and its central position offers axis hole (9), impeller (5) places in the impeller receiving cavity (1-2), pump motor (2) places in the pump motor receiving cavity (1-1), its motor shaft (3) is the shape that is in transmission connection with impeller (5) after running through axis hole (9) and high low pressure separation black box, and it is characterized in that: described high low pressure separates black box and comprises a low pressure motive sealing (6), at least one high pressure dynamic sealing (7) and be positioned at adjacent low pressure motive sealing (6) and high pressure dynamic sealing (7) between pressure relief device.
2. Novel bunk according to claim 1 is pressed and is separated the sealed type submersible pump, it is characterized in that: described high low pressure separates black box and comprises a low pressure motive sealing (6) and a high pressure dynamic sealing (7), low pressure motive sealing (6) wherein is fixed on the upper edge (10) of axis hole (9) and locates, high pressure dynamic sealing (7) is fixed on the lower opening's edge (11) of axis hole (9) and locates, and described pressure relief device refers to offer at least a pressure release through hole (8) that connects with axis hole (9) inwall on the first demarcation strip (4).
3. Novel bunk according to claim 1 is pressed and is separated the sealed type submersible pump, it is characterized in that: described high low pressure separates black box and comprises a low pressure motive sealing (6) and a high pressure dynamic sealing (7), the front-end face of described pump motor housing (2-1) is the central elevation shape, the bump (2-2) of above-mentioned pump motor housing (2-1) front-end face and the motor shaft (3) that runs through this bump (2-2) run through axis hole (9) jointly, also be fixed with carriage (12) on the front-end face inwall of this pump motor housing (2-1), described carriage (12) is symmetrical with bump (2-2), and form liquid medium receiving cavity (13) between the two, high pressure dynamic sealing (7) is fixed on bump (2-2) outer surface of pump motor housing (2-1), described low pressure motive sealing (6) is fixed on carriage (12) outer surface, described pressure relief device refers to offer at least a pressure release through hole (8) on motor shaft (3), one end of this pressure release through hole (8) and liquid medium receiving cavity (13) connect, and its other end runs through the front-end face of motor shaft (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320285872 CN203248370U (en) | 2013-05-23 | 2013-05-23 | Novel high-low pressure separating and sealing type sinking pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320285872 CN203248370U (en) | 2013-05-23 | 2013-05-23 | Novel high-low pressure separating and sealing type sinking pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203248370U true CN203248370U (en) | 2013-10-23 |
Family
ID=49374812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320285872 Expired - Lifetime CN203248370U (en) | 2013-05-23 | 2013-05-23 | Novel high-low pressure separating and sealing type sinking pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203248370U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103307016A (en) * | 2013-05-23 | 2013-09-18 | 君禾泵业股份有限公司 | Novel high and low pressure separation sealing type submersible pump |
| WO2016095982A1 (en) * | 2014-12-17 | 2016-06-23 | Abb Technology Ltd | An electric motor with a sealing system |
| CN107542673A (en) * | 2017-10-20 | 2018-01-05 | 项达章 | A kind of high-low pressure separates closed type immersible pump |
-
2013
- 2013-05-23 CN CN 201320285872 patent/CN203248370U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103307016A (en) * | 2013-05-23 | 2013-09-18 | 君禾泵业股份有限公司 | Novel high and low pressure separation sealing type submersible pump |
| WO2016095982A1 (en) * | 2014-12-17 | 2016-06-23 | Abb Technology Ltd | An electric motor with a sealing system |
| CN107005123A (en) * | 2014-12-17 | 2017-08-01 | Abb瑞士股份有限公司 | Electro-motor with sealing system |
| CN107005123B (en) * | 2014-12-17 | 2020-05-22 | Abb瑞士股份有限公司 | Electric motor with sealing system |
| CN107542673A (en) * | 2017-10-20 | 2018-01-05 | 项达章 | A kind of high-low pressure separates closed type immersible pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131023 |
|
| CX01 | Expiry of patent term |