CN219472440U

CN219472440U - Sand prevention mechanism of submersible axial flow pump

Info

Publication number: CN219472440U
Application number: CN202320672974.9U
Authority: CN
Inventors: 柯晨; 柯宏君; 李慧斌; 张兴安; 张文娟
Original assignee: Henan Huijin Automation Equipment Co ltd
Current assignee: Henan Huijin Automation Equipment Co ltd
Priority date: 2023-03-30
Filing date: 2023-03-30
Publication date: 2023-08-04
Anticipated expiration: 2033-03-30

Abstract

The utility model provides a sand prevention mechanism of a submersible axial flow pump, which comprises a first filtering net cover, a second filtering net cover, a sand prevention net barrel, a supporting sleeve and scraping plates, wherein the sand prevention net barrel is sleeved outside a transmission shaft, the supporting sleeve is arranged at the left side and the right side of the sand prevention net barrel, the first filtering net cover is arranged at the upper side of the sand prevention net barrel, the second filtering net cover is arranged at the lower side of the first filtering net cover, a fixed shaft is sleeved on the transmission shaft, connecting support rods are arranged at the upper side and the lower side of the fixed shaft sleeve, the scraping plates are arranged at the outer ends of the connecting support rods.

Description

Sand prevention mechanism of submersible axial flow pump

Technical Field

The utility model relates to a sand prevention mechanism of a submersible axial flow pump, and belongs to the technical field of submersible pumps.

Background

The submersible pump is an important device for deep well water extraction. When in use, the whole unit is immersed into water for working, and the underground water is extracted to the ground surface, so that the unit is used for domestic water, mine rescue, industrial cooling, farm irrigation, seawater lifting and ship load adjustment, and can also be used for fountain landscapes. The submerged electric pump unit consists of four parts, namely a water pump, a submerged motor (comprising a cable), a water delivery pipe and a control switch.

Labyrinth sand control ware is equipped with on dive motor shaft upper portion, prevent that the flowing sand from getting into the motor, but sand control ware is single-layer structure, can only block the protection to the grit of great volume, can not filter less grit, inside the mesh entering pump body of sand control ware can be permeated to little grit, make the inside impeller wearing and tearing of pump body, the pumping effect that leads to water descends, and can reduce the sealed effect of pump body, simultaneously the grit can block in the mesh of sand control ware, long-time accumulation can lead to sand control ware to block up, influence the effect of intaking, the sand control mechanism of a dive axial-flow pump is urgently needed now to solve the problem that above-mentioned appears.

Disclosure of Invention

Aiming at the defects existing in the prior art, the utility model aims to provide a sand prevention mechanism of a submersible axial flow pump, so as to solve the problems in the prior art.

In order to achieve the above object, the present utility model is realized by the following technical scheme: the sand prevention mechanism of the submersible axial flow pump comprises a pump receiving short pipe, a pump head, a protective filtering assembly, a motor and a transmission shaft, wherein the output end of the upper side of the motor is connected with the transmission shaft, the pump head is assembled at the upper end of the transmission shaft, the protective filtering assembly is arranged between the motor and the pump head, and the upper side of the pump head is connected with the pump receiving short pipe;

the protection filter assembly comprises a first filter screen cover, a second filter screen cover, a sand prevention screen cylinder, a support sleeve, scraping plates, connecting support rods and a fixed shaft sleeve, wherein the sand prevention screen cylinder is sleeved on the outer side of a transmission shaft, the left side and the right side of the sand prevention screen cylinder are provided with the support sleeve, the upper side of the sand prevention screen cylinder is provided with the first filter screen cover, the lower side of the first filter screen cover is provided with the second filter screen cover, the fixed shaft sleeve is arranged on the transmission shaft, the upper side and the lower side of the fixed shaft sleeve are provided with the connecting support rods, and the outer ends of the connecting support rods are provided with the scraping plates.

Further, the specification of the first filter screen cover is the same as that of the second filter screen cover, and the mesh diameters of the first filter screen cover and the second filter screen cover are larger than those of the sand-preventing screen cylinder.

Further, both sides all are provided with the connecting plate around first filter screen panel and the second filter screen panel, the inside fastening bolt that runs through of connecting plate is provided with.

Further, a limiting clamping groove is formed in the annular side face of the supporting sleeve, the inner width of the limiting clamping groove is the same as the thickness of the first filtering net cover and the thickness of the second filtering net cover, and two ends of the first filtering net cover and two ends of the second filtering net cover are clamped into the limiting clamping groove.

Further, flange plates are arranged at the left end and the right end of the supporting sleeve, and the flange plates at the two ends are connected with the motor and the pump head through screws.

Further, the length of the scraping plate is the same as that of the sand control net barrel, and the outer surface of the scraping plate is in fit contact with the inner surface of the sand control net barrel.

By adopting the technical scheme, the utility model has the beneficial effects that: according to the sand prevention mechanism of the submersible axial flow pump, sand can be prevented from being blocked by the sand prevention net barrel through the first filtering net cover, the second filtering net cover, the sand prevention net barrel, the supporting sleeve, the scraping plates, the connecting supporting rods and the fixed shaft sleeve, sand with different sizes can be blocked and filtered through the double-layer protection structure, the sand prevention effect of the submersible pump is improved, abrasion in the pump body is greatly reduced, meanwhile, sand blocked on the sand prevention net barrel can be cleaned along with rotation of the transmission shaft through the scraping plates, the problem that the sand prevention net barrel is blocked by the sand prevention net barrel is effectively solved, the sand prevention device on the original submersible pump is of a single-layer structure, only sand with larger size can be blocked and protected, small sand can enter the inside of the pump body through meshes of the sand prevention device, the impeller in the pump body is worn, the pumping effect of water is reduced, the sealing effect of the pump body is reduced, meanwhile, the sand can be blocked in the meshes of the sand prevention device, the sand prevention effect is caused by long-time accumulation, and the problem of good water inflow effect is solved, and the sand prevention effect is improved.

Drawings

Other features, objects and advantages of the present utility model will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:

FIG. 1 is a schematic view of a sand control mechanism of a submersible axial flow pump according to the present utility model;

FIG. 2 is a schematic view of a sand control mechanism of a submersible axial flow pump according to the present utility model;

FIG. 3 is a front cross-sectional view of a protective filter assembly in a sand control mechanism of a submersible axial flow pump of the present utility model;

in the figure: 1-pump receiving short pipe, 2-pump head, 3-protection filter component, 31-first filter screen, 32-second filter screen, 33-connecting plate, 331-fastening bolt, 34-flange plate, 35-sand-proof screen cylinder, 36-supporting sleeve, 37-limit clamping groove, 38-scraper blade, 39-connecting strut, 310-fixed shaft sleeve, 4-motor and 5-transmission shaft.

Detailed Description

The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.

Referring to fig. 1-3, the present utility model provides a technical solution: the sand prevention mechanism of the submersible axial flow pump comprises a pump receiving short pipe 1, a pump head 2, a protective filtering component 3, a motor 4 and a transmission shaft 5, wherein the output end of the upper side of the motor 4 is connected with the transmission shaft 5, the pump head 2 is assembled at the upper end of the transmission shaft 5, the protective filtering component 3 is arranged between the motor 4 and the pump head 2, and the pump receiving short pipe 1 is connected to the upper side of the pump head 2;

the protection filter assembly 3 includes first filter screen 31, second filter screen 32, sand control net section of thick bamboo 35, support sleeve 36, scraper blade 38, connect branch 39 and fixed axle sleeve 310, sand control net section of thick bamboo 35 cover is located the transmission shaft 5 outside, sand control net section of thick bamboo 35 left and right sides is provided with support sleeve 36, sand control net section of thick bamboo 35 upside is provided with first filter screen 31, first filter screen 31 downside is provided with second filter screen 32, fixed axle sleeve 310 sets up on transmission shaft 5, the upper and lower both sides of fixed axle sleeve 310 are provided with connect branch 39, connect branch 39 outer end and be provided with scraper blade 38, this design has solved the sand control ware on the original immersible pump and has been single-layer structure, can only block the protection to great volume grit, can not filter less grit, the mesh entering pump body inside of sand control ware is permeated to little grit, make the inside impeller of the pump body, the pumping effect of water descends, and the sealing effect that can reduce, simultaneously the grit can block in the mesh of sand control ware, long-time accumulation can lead to the ware to blocking, influence the problem that intaking effect is good.

The specification of the first filter screen cover 31 is the same as that of the second filter screen cover 32, the mesh diameters of the first filter screen cover 31 and the second filter screen cover 32 are larger than those of the sand prevention screen cylinder 35, the first filter screen cover 31 and the second filter screen cover 32 can block and filter larger sand, the sand prevention screen cylinder 35 can further filter water, and smaller sand contained in the water is filtered.

Both sides all are provided with connecting plate 33 around first filter screen panel 31 and second filter screen panel 32, and the inside fastening bolt 331 that runs through of connecting plate 33 is provided with, is convenient for with first filter screen panel 31 and second filter screen panel 32 fixed connection through connecting plate 33 and fastening bolt 331 that set up.

The limiting clamping groove 37 is formed in the annular side face of the supporting sleeve 36, the inner width of the limiting clamping groove 37 is the same as the thickness of the first filtering net cover 31 and the second filtering net cover 32, two ends of the first filtering net cover 31 and two ends of the second filtering net cover 32 are clamped into the limiting clamping groove 37, the first filtering net cover 31 and the second filtering net cover 32 are conveniently connected with the supporting sleeve 36 in a sealing mode through the limiting clamping groove 37, and the sealing performance of the connecting position is guaranteed.

The flange plates 34 are arranged at the left end and the right end of the supporting sleeve 36, the flange plates 34 at the two ends are connected with the motor 4 and the pump head 2 through screws, and the filter screen cylinder is convenient to install and connect through the arranged flange plates 34.

The length of the scraping plate 38 is the same as that of the sand control net barrel 35, the outer surface of the scraping plate 38 is in fit contact with the inner surface of the sand control net barrel 35, and the scraping plate 38 can rotate along with transmission to clean up sand and gravel blocked on the sand control net barrel 35.

As an embodiment of the present utility model: when the sand control device is used, the filter screen cylinder is sleeved on the transmission shaft 5, the filter screen cylinder is arranged on the transmission shaft 5 in an aligned mode through the flange plate 34, the first filter screen cylinder 31 and the second filter screen cylinder 32 are sleeved on the outer side of the filter screen cylinder, two ends of the first filter screen cylinder 31 and two ends of the second filter screen cylinder 32 are clamped into the limiting clamping grooves 37, the first filter screen cylinder 31 and the second filter screen cylinder 32 are connected and fixed through the fastening bolts 331 and the connecting plates 33, larger sand can be blocked and filtered from the outer side through the first filter screen cylinder 31 and the second filter screen cylinder 32, water can be further filtered through the sand control screen cylinder 35, small sand contained in the water is filtered, the sand control effect is improved, meanwhile, the sand control effect is improved, and the sand control screen cylinder 35 can be effectively prevented from being blocked by cleaning the sand control screen cylinder 35 through the rotation of the set scraping plates 38 along with the transmission shaft 5.

While the fundamental and principal features of the utility model and advantages of the utility model have been shown and described, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims

1. The utility model provides a sand prevention mechanism of dive axial-flow pump, includes pump receiving nozzle stub, pump head, protection filter component, motor and transmission shaft, its characterized in that: the upper output end of the motor is connected with a transmission shaft, the upper end of the transmission shaft is provided with a pump head, a protective filter assembly is arranged between the motor and the pump head, and the upper side of the pump head is connected with a pump receiving short pipe;

2. A sand control mechanism for a submersible axial flow pump as claimed in claim 1, wherein: the specification of the first filtering net cover is the same as that of the second filtering net cover, and the mesh diameters of the first filtering net cover and the second filtering net cover are larger than those of the sand prevention net barrel.

3. A sand control mechanism for a submersible axial flow pump as claimed in claim 1, wherein: the first filtering net cover and the second filtering net cover are both provided with connecting plates at the front side and the rear side, and fastening bolts penetrate through the inside of the connecting plates.

4. A sand control mechanism for a submersible axial flow pump as claimed in claim 1, wherein: the inside spacing draw-in groove of having seted up of support sleeve annular side, spacing draw-in groove inside width is the same with first filtration screen panel and second filtration screen panel thickness, first filtration screen panel and second filtration screen panel both ends card go into spacing draw-in groove.

5. A sand control mechanism for a submersible axial flow pump as claimed in claim 1, wherein: the left end and the right end of the supporting sleeve are provided with flange plates, and the flange plates at the two ends are connected with the motor and the pump head through screws.

6. A sand control mechanism for a submersible axial flow pump as claimed in claim 1, wherein: the length of the scraping plate is the same as that of the sand prevention net barrel, and the outer surface of the scraping plate is in fit contact with the inner surface of the sand prevention net barrel.