CN201461456U - Double-suction submersible electric pump - Google Patents

Double-suction submersible electric pump Download PDF

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Publication number
CN201461456U
CN201461456U CN2009200783167U CN200920078316U CN201461456U CN 201461456 U CN201461456 U CN 201461456U CN 2009200783167 U CN2009200783167 U CN 2009200783167U CN 200920078316 U CN200920078316 U CN 200920078316U CN 201461456 U CN201461456 U CN 201461456U
Authority
CN
China
Prior art keywords
pump
impeller
motor
water
double
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2009200783167U
Other languages
Chinese (zh)
Inventor
李锦泽
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHANGHAI AOYI PUMP MANUFACTURING Co Ltd
Original Assignee
SHANGHAI AOYI PUMP MANUFACTURING Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SHANGHAI AOYI PUMP MANUFACTURING Co Ltd filed Critical SHANGHAI AOYI PUMP MANUFACTURING Co Ltd
Priority to CN2009200783167U priority Critical patent/CN201461456U/en
Application granted granted Critical
Publication of CN201461456U publication Critical patent/CN201461456U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a double-suction submersible electric pump with a structure as follows: an impeller is arranged in a pump body and mounted at the lower part of the pump shaft, and the upper end of the pump shaft penetrates the pump cover and is connected into a whole with the motor shaft; a separation oil chamber group is arranged at the lower end of a motor; a mechanical seal is arranged on the motor shaft at the lower end of the motor; and the impeller is a double-suction impeller with both upper and lower ends for suction, two water inlets are formed at the bottom part of the pump body, one water inlet corresponds to a suction port at the lower end of the impeller, the other water inlet corresponds to a suction port at the upper end of the impeller through a water inflow passageway, and a water outlet is formed on a side surface of the pump body. Due to the adoption of the double-suction structure, the pump can suck water from the upper and the lower ends. Therefore, the motor has no radial pull force and the service life of the pump is greatly prolonged; and meanwhile, the mechanical seal piece is arranged at the upper water suction port and in the negative pressure state during the running, and the service life of the mechanical seal is prolonged. Moreover, the use efficiency is improved, the structure is more reasonable and compact, the appearance is beautiful, and the running is safer and more reliable.

Description

A kind of double-sucking type Submerged Motor Pumps
Technical field
The utility model relates to a kind of double-sucking type Submerged Motor Pumps.
Background technique
What existing Submerged Motor Pumps all adopted is single suction formula Submerged Motor Pumps, for example sewage dirt Submerged Motor Pumps, proof submersible sand discharging pump and clear water Submerged Motor Pumps etc.Because of it belongs to single suction formula structure, so there is following defective: 1) owing to be monolateral suction from impeller, and consequent axial centrifugal tension is bigger, and heavy caliber, big flow, high-lift model is obviously bigger than normal, thereby the very fast damage of the pump shaft that causes motor, working life is shorter.2) in addition owing to belong to single suction formula structure, its motor part is isolated by the grease chamber, and one side of grease chamber is in the pump chamber, and water pump is in operation, and pump is in always pressure state, high-lift pressure is high more, do the axle envelope because of Submerged Motor Pumps generally all adopts double mechanical seal, fuel tank is in always pressure condition, so very easily leak, high-lift pump is easy more to leak, thereby causes motor water inlet, damage.
Summary of the invention
Technical problem to be solved of the present utility model is to overcome the defective that exists in the existing Submerged Motor Pumps, and long, safe and reliable double-sucking type Submerged Motor Pumps of a kind of life-span is provided.
Be achieved in that a kind of double-sucking type Submerged Motor Pumps for solving the problems of the technologies described above the technical solution of the utility model, comprise motor and electric pump, described electric pump comprises the pump housing, pump shaft, impeller and pump cover; Described impeller places in the pump housing, and is installed in the bottom of pump shaft, and the upper end of pump shaft is passed pump cover and fused with motor shaft; The lower end of described motor is provided with and isolates grease chamber's group; On the motor shaft of the lower end of motor, be provided with mechanical seal; It is characterized in that: described impeller is the double-entry impeller that upper/lower terminal sucks, the bottom of the described pump housing is provided with two water intakes, one of them water intake is directly corresponding with the suction port of impeller lower end, another water intake is corresponding with the suction port of impeller upper end by an intake tunnel, is provided with water outlet in the side of the pump housing.
Be provided with the protection assembly that leaks between the described pump housing and the motor.
The utility model beneficial effect, owing to adopt the double-sucking type structure, pump is to absorb water simultaneously from two ends up and down.So therefore motor has not had axial tension, the working life of having improved pump greatly; And mechanical sealing element is in the position of water sucking mouth, and being in operation is in negative pressure state, prolonged mechanical seal working life.And improved utilization efficiency, more reasonable structure, compactness, beautiful shape, utilization and operation safety and reliability.
Because of adopting unique double-sucking type structure, water pump is in actual motion, the water intake of water pump divides two-part up and down, and all from the bottom diversion, suction direction suction position is low, because from two ends suction up and down, isolate the position, water sucking mouth that the grease chamber is in the upper end, it is in operation and is in negative pressure state always, compares antileaking with single suction pump.
Because of the sealed end of motor is in negative pressure state, antileaking can reach the requirement that more high-lift occasion is used relatively.
Description of drawings
Fig. 1 is the utility model structural representation.
Embodiment
Below in conjunction with accompanying drawing, the utility model is specifically described:
A kind of double-sucking type Submerged Motor Pumps of the utility model comprises motor 1 and electric pump 2, and described electric pump 2 comprises the pump housing 21, pump shaft 22, impeller 23 and pump cover 24.Above its middle pump body installation pump housing 1, impeller 23 places in the pump housing 21, and is installed in the bottom of pump shaft 22, and the upper end of pump shaft 22 is passed pump cover 23 and fused with motor shaft, and promptly pump shaft also is a motor shaft.The lower end of described motor 1 is provided with and isolates grease chamber's group 3; Be provided with mechanical seal 4 in the lower end of motor 1, this mechanical seal 4 is installed on the pump shaft 22.The double-entry impeller that described impeller 23 sucks for upper/lower terminal, be provided with two water intakes below the described pump housing 21, the both is from the bottom diversion, one of them water intake 26 is directly corresponding with the lower end suction port of impeller, another water intake 27 is corresponding with the suction port of impeller 23 upper ends by an intake tunnel, be provided with water outlet 25 in the side of the pump housing, promptly impeller 23 adopts the mode of upper/lower terminal water inlet, a side water outlet form.
Be provided with the protection assembly 5 that leaks between the above-mentioned pump housing 21 and the motor 1.
During work, fed sheet of a media enters from the bottom of the pump housing 21, and the upper and lower end inlet via impeller 23 sucks again, dishes out from the centre then, and fed sheet of a media flows out through the side exit of runner by the pump housing 21.
Because of adopting unique double-sucking type structure, water pump is in actual motion, and water is that the two ends from water pump vane intake middle the outflow simultaneously.The water intake of water pump divides two-part up and down, and all from the bottom diversion, suction direction suction position is low, because from two ends suction up and down, so isolation grease chamber one end of pump and motor is in the position, water sucking mouth, the negative pressure state that always is in service, single suction formula structure antileaking relatively.Be suitable for using in more high-lift occasion, this pump is applicable to the product of clear water and sewage two big series.

Claims (2)

1. a double-sucking type Submerged Motor Pumps comprises motor and electric pump, and described electric pump comprises the pump housing, pump shaft, impeller and pump cover; Described impeller places in the pump housing, and is installed in the bottom of pump shaft, and the upper end of pump shaft is passed pump cover and fused with motor shaft; The lower end of described motor is provided with and isolates grease chamber's group; On the pump shaft of the upper end of the pump housing, be provided with mechanical seal; It is characterized in that: described impeller is the double-entry impeller that upper/lower terminal sucks, the bottom of the described pump housing is provided with two water intakes, one of them water intake is directly corresponding with the suction port of impeller lower end, another water intake is corresponding with the suction port of impeller upper end by an intake tunnel, is provided with water outlet in the side of the pump housing.
2. a kind of double-sucking type Submerged Motor Pumps according to claim 1 is characterized in that: be provided with the protection assembly that leaks between the described pump housing and the motor.
CN2009200783167U 2009-07-16 2009-07-16 Double-suction submersible electric pump Expired - Fee Related CN201461456U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009200783167U CN201461456U (en) 2009-07-16 2009-07-16 Double-suction submersible electric pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009200783167U CN201461456U (en) 2009-07-16 2009-07-16 Double-suction submersible electric pump

Publications (1)

Publication Number Publication Date
CN201461456U true CN201461456U (en) 2010-05-12

Family

ID=42388810

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2009200783167U Expired - Fee Related CN201461456U (en) 2009-07-16 2009-07-16 Double-suction submersible electric pump

Country Status (1)

Country Link
CN (1) CN201461456U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102146926A (en) * 2011-05-05 2011-08-10 衡阳市朝阳泵业有限公司 Double-suction efficient electric submersible pump
CN103080556A (en) * 2010-06-16 2013-05-01 阿尔维勒有限公司 Dual-flow centrifugal pump

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103080556A (en) * 2010-06-16 2013-05-01 阿尔维勒有限公司 Dual-flow centrifugal pump
CN103080556B (en) * 2010-06-16 2016-07-13 阿尔维勒有限公司 Dual-flow centrifugal pump
CN102146926A (en) * 2011-05-05 2011-08-10 衡阳市朝阳泵业有限公司 Double-suction efficient electric submersible pump

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C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20100512

Termination date: 20110716