CN218971449U

CN218971449U - Submersible sand discharging pump integrated with pumping wheel type mechanical seal

Info

Publication number: CN218971449U
Application number: CN202222780034.XU
Authority: CN
Inventors: 薛飞; 王子文; 陶鑫鑫
Original assignee: Sanlianpump Industry Co ltd
Current assignee: Sanlianpump Industry Co ltd
Priority date: 2022-10-21
Filing date: 2022-10-21
Publication date: 2023-05-05
Anticipated expiration: 2032-10-21

Abstract

The utility model discloses a submersible sand pump integrated with a pumping wheel type mechanical seal, which comprises a pump body, a base, a submersible motor, a cooling liquid area, a lower bearing, an impeller, a circulating pipeline, a lower end cover, a sealing cover, a mechanical seal, a shaft sleeve, an inlet filter screen and a stirring head, wherein a cooling medium adopts an ethylene glycol-water mixture, the heat absorption effect of the medium is stronger than that of water, the heat of the motor can be effectively absorbed, the mechanical seal can be lubricated, the working efficiency of the machine is ensured, an internal circulating system is arranged in the machine, the cooling effect of the cooling medium is ensured, the waste of resources is reduced, the inlet filter screen is arranged at an inlet of an electric pump, the stirring head is arranged at an extending end of a shaft, the stirring head has a crushing function, and the filter screen and the stirring head can avoid the blockage of a conveying medium block to the inlet.

Description

Submersible sand discharging pump integrated with pumping wheel type mechanical seal

Technical Field

The utility model relates to the technical field of submersible sand pump, in particular to a submersible sand pump integrated with a pumping wheel type mechanical seal.

Background

The submersible sand pump is used as a novel slurry pump, is suitable for various water drainage and sand collection engineering containing silt, and is widely applied to agricultural production, cities, factories, railways, mines and construction site drainage.

The existing submersible sand pump is basically characterized in that a pumped medium is used for cooling a motor, when the submerged depth is limited or most of the medium is pumped, the body part of the submersible motor is exposed out of the medium, and at the moment, heat generated by the operation of the submersible motor cannot be effectively dissipated through medium or air conduction, so that the motor is stopped or burnt due to overhigh temperature rise; the existing submersible sand discharge pump is limited by a structure, is matched with two single-end face mechanical seals, has a longer shaft extension section, larger deflection and poor overload capability, and is easy to cause the sweeping of a stator and a rotor, so that a motor is burnt; the existing submersible sand pump pumps away sewage containing solid particles such as coal dust, sediment, rock dust and the like, the solid particles in the water are sucked into the pump body and easily block the pump body, so that the drainage efficiency of the submersible sand pump is affected, excessive abrasion is caused to the submersible sand pump, and the service life is shortened; most of the existing submersible sand pump is of a runner type structure, and because a runner between the outer cover and the motor casing is not limited, when a medium passes through the space between the outer cover and the motor casing, vortex is formed due to backflow of the medium, so that the efficiency of the electric pump is greatly reduced.

Disclosure of Invention

The utility model provides a submersible sand pump integrated with a pumping wheel type mechanical seal, which is used for solving the problems of poor radiating effect, poor filtering effect on solid impurities in water and low efficiency of an electric pump of the submersible sand pump.

In order to solve the problems, the utility model provides the following technical scheme:

the integrated pumping wheel type mechanical seal submersible sand pump comprises a pump body, a base, a submersible motor, a lower bearing and an impeller;

the inner cavity of the pump body is provided with a cooling liquid area around the periphery of the submersible motor, a circulating pipeline is arranged in the cooling liquid area, a mechanical seal is arranged at the bottom of the cooling liquid area and around the outer wall of the lower bearing, and sealing covers are fixedly arranged at two sides of the mechanical seal.

The stirring head is fixedly arranged at the bottom of the pump body and positioned at the middle position of the outer surface of the bottom of the impeller, and the inlet filter screen is arranged at the water inlet of the sand discharge pump.

The utility model further discloses the following technology:

preferably, the cooling liquid area and the submersible motor are separated from each other by an inner wall.

Preferably, the top of the outer wall of the cooling liquid area is provided with a liquid injection port, and the other side corresponding to the liquid injection port is provided with a liquid outlet.

Preferably, a shaft sleeve is movably sleeved on the outer surface of the tail section of the lower bearing above the impeller.

The submersible sand pump integrated with the pumping wheel type mechanical seal has the following advantages:

the cooling medium adopts glycol-water mixture, the heat absorption effect of the medium is stronger than that of water, the heat of a motor can be effectively absorbed, mechanical sealing can be lubricated, the working efficiency of a machine is guaranteed, an internal circulation system is arranged in the machine, the cooling effect of the cooling medium is guaranteed, and the waste of resources can be reduced.

The electric pump inlet is provided with an inlet filter screen, the shaft extension end is provided with a stirring head, the stirring head has a crushing function, and the filter screen and the stirring head can avoid the blockage of the inlet by a conveying medium block.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings needed in the description of the embodiments will be briefly described below, it will be apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art;

FIG. 1 is a schematic plan view of a submersible sand pump with an integrated pumping wheel type mechanical seal;

FIG. 2 is a schematic plan view of the upper half of FIG. 1 provided by the present utility model;

FIG. 3 is a schematic plan view of the bottom half of FIG. 1 provided by the present utility model;

FIG. 4 is a schematic plan view of a coolant circulation provided by the present utility model;

the reference numerals in the figures illustrate: 1. a pump body; 2. a base; 3. a submersible motor; 4. a cooling liquid zone; 5. a lower bearing; 6. an impeller; 7. a circulation pipe; 8. a lower end cap; 9. sealing cover; 10. mechanical sealing; 11. a shaft sleeve; 12. an inlet filter screen; 13. a stirring head.

Detailed Description

Embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

1-4, in a first embodiment, a submersible sand pump integrated with a pumping wheel type mechanical seal comprises a submersible motor, a pump body, a base, a connecting seat and a lower bearing;

the inner chamber of the pump body 1 and around the periphery of the submersible motor 3 offer the coolant liquid district 4, after the user pours into the coolant liquid to the coolant liquid district 4, coolant liquid leads to the coolant liquid district 4 and provides cooling work to the submersible motor 3 of inside, circulation pipeline 7 has been offered to the coolant liquid district 4 inside, when coolant liquid circulates in the coolant liquid district 4 inside, circulation pipeline 7 will make the coolant liquid be in the flow state for a long time, mechanical seal 10 is installed to the outer wall of coolant liquid district 4 bottom and around lower bearing 5, mechanical seal 10 both sides fixed mounting has sealed lid 9, the other end fixed mounting of sealed lid 9 is on the pump body 1, in order to ensure mechanical seal 10's stability, and when coolant liquid circulation bottom, coolant liquid flows through mechanical seal 10, lubricate work to mechanical seal 10, after coolant liquid water line in coolant liquid district 4 reaches the liquid outlet position, the coolant liquid flows into the external world.

The stirring head 13 is fixedly arranged at the bottom of the pump body 1 and positioned at the middle position of the outer surface of the bottom of the impeller 6, the inlet filter screen 12 is arranged at the water inlet of the sand discharge pump, and the stirring head 13 can continuously crush the water inlet of the sand discharge pump so as to remove solid impurities in cooperation with the inlet filter screen 12 and prevent the solid impurities from blocking the water inlet.

The cooling water jacket 14 wraps the cooling liquid area 4 and separates the cooling liquid area 4 from the submersible motor 3.

The wall in cooling liquid district 4 left side is provided with the liquid outlet, and the wall in cooling liquid district 4 right side is provided with the inlet, and user's accessible inlet supplements the inside coolant liquid in cooling liquid district 4, and when the too much overage liquid outlet of the inside coolant liquid in cooling liquid district 4, the coolant liquid flows to outside through the liquid outlet, when guaranteeing the total amount of the inside coolant liquid in cooling liquid district 4, can give off the heat.

The cooling fluid is a glycol-water mixture that not only absorbs heat more than water, but also provides a lubrication function to the mechanical seal 10.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. An integrated pumping wheel type mechanical seal's dive sediment outflow pump which characterized in that: the device comprises a pump body, a base, a submersible motor, a lower bearing and an impeller;

the inner cavity of the pump body (1) is provided with a cooling liquid area (4) around the periphery of the submersible motor (3), a circulating pipeline (7) is arranged inside the cooling liquid area (4), a mechanical seal (10) is arranged at the bottom of the cooling liquid area (4) and around the outer wall of the lower bearing (5), and a sealing cover (9) is fixedly arranged around the outer part of the mechanical seal (10);

the stirring head (13) is fixedly arranged at the bottom of the pump body (1) and positioned at the middle position of the outer surface of the bottom of the impeller (6), and the inlet filter screen (12) is arranged at the water inlet of the sand discharge pump.

2. A submersible sand pump with integrated pumping wheel mechanical seal as claimed in claim 1 wherein: the cooling liquid area (4) and the submersible motor (3) are separated by the inner wall.

3. A submersible sand pump with integrated pumping wheel mechanical seal as claimed in claim 1 wherein: the top of the outer wall of the cooling liquid zone (4) is provided with a liquid injection port, and the other side corresponding to the liquid injection port is provided with a liquid outlet.

4. A submersible sand pump with integrated pumping wheel mechanical seal as claimed in claim 1 wherein: the shaft sleeve (11) is movably sleeved on the outer surface of the tail section of the lower bearing (5) above the impeller (6).