CN218644479U

CN218644479U - Submersible sewage pump with spiral impeller capable of achieving efficient cutting

Info

Publication number: CN218644479U
Application number: CN202222985764.3U
Authority: CN
Inventors: 吴永旭; 蔡奎义
Original assignee: Shanghai Oriental Pump Group Nantong Co ltd
Current assignee: Shanghai Oriental Pump Group Nantong Co ltd
Priority date: 2022-11-09
Filing date: 2022-11-09
Publication date: 2023-03-17
Anticipated expiration: 2032-11-09

Abstract

The utility model provides a spiral impeller high efficiency cutting submersible sewage pump, includes the pump body, and the pump seat is installed to pump body below, install the pump shaft in the pump body, be provided with drive arrangement in the pump body top, by drive arrangement drive pump shaft, be provided with the pump chamber in the pump body below, the spiral cutting impeller is installed to the pump shaft lower extreme in the pump chamber, and the impeller blade terminal surface processing of spiral cutting impeller has the cutting edge, the cutting disc is installed to pump seat upper end, when the spiral cutting impeller rotates and cutting disc surface between form the cutting clearance, the pump seat outside is provided with adjusting bolt, and adjusting bolt top is leaned on pump body bottom and is adjusted the cutting clearance size. The utility model solves the problem that when the pump pumps sewage containing fibrous substances, the pump and the pipeline are easy to block; the pump repair rate is reduced, and the unit operation efficiency is improved; the running cost of the pump is reduced, and the service life is prolonged.

Description

Submersible sewage pump with spiral impeller capable of achieving efficient cutting

Technical Field

The utility model relates to a water pump technical field specifically indicates a spiral impeller high efficiency cutting submersible sewage pump.

Background

Submersible sewage pump mainly is applied to municipal works, industrial building, hospital, trades such as mine, a sewage for conveyer belt solid particle and various long fibers, waste water and municipal sewage, because it is more to contain fibrous material sometimes in the sewage, adopt ordinary submersible sewage pump can have the situation that long fibrous material blockked up the impeller, at present, domestic most producers can be when the more sewage pump of pump drainage impurity is being produced, structural most adoption is joining in marriage agitating unit in the impeller inside, for example install the puddler at the pump shaft periphery, through agitating unit's effect, homogenize sewage and pump and send.

As shown in fig. 2, the pump mainly comprises a pump base, a stirring device, a pump body, a double-channel impeller, a mechanical seal, a connecting base, a stator component, a rotor component and other parts, wherein the stirring device is connected with the pump shaft in a threaded fit mode and locks the impeller, because the submersible sewage pump is mainly applied to sewage occasions, the components in the sewage are complex, the mass of fibrous materials in most sewage is large, and the stirring device and the impeller component rotate simultaneously when the pump runs at high speed to pump and discharge sewage, and because only the stirring device is adopted, the pump has the defects (1) in the following aspects, the stirring device is matched, and the suction inlet of the impeller is relatively reduced, so that the flow and the lift of the pump are reduced, and sometimes the reduction range of the flow and the lift reaches 20-30%; (2) Because the stirring device is long and the impeller is difficult to lock, the impeller can sometimes fall off when the pump runs at high speed; (3) The stirring effect is limited, the service area is small, and the fibrous substances can be wound on the stirring device; (4) Under the condition that a trash rack is not arranged, the small-caliber pump is easy to block pipelines and impellers, the unit is easy to operate unstably, the repair rate is high, and therefore improvement is needed.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is not enough to above-mentioned prior art, and provide a spiral impeller high efficiency cutting dive sewage pump.

In order to solve the technical problem, the utility model discloses a technical scheme is:

the utility model provides a spiral impeller high efficiency cutting submersible sewage pump, includes the pump body, and the pump seat is installed to pump body below, install the pump shaft in the pump body, be provided with drive arrangement in the pump body top, by drive arrangement drive pump shaft, be provided with the pump chamber in the pump body below, the spiral cutting impeller is installed to the pump shaft lower extreme in the pump chamber, and the impeller blade terminal surface processing of spiral cutting impeller has the cutting edge, the cutting disc is installed to pump seat upper end, when the spiral cutting impeller rotates and cutting disc surface between form the cutting clearance, the pump seat outside is provided with adjusting bolt, and adjusting bolt top is leaned on pump body bottom and is adjusted the cutting clearance size.

Furthermore, a circle of inner mounting seat is machined in the upper end of the pump seat, and the bottom of the cutting disc is fixed on the inner mounting seat through screws.

Furthermore, a circle of outer mounting seat is machined outside the upper end of the pump seat, the periphery of the outer mounting seat is connected with the bottom of the pump body through bolts and elastic cushions, the adjusting bolts are symmetrically connected to the outer mounting seat, and the adjusting bolts are connected with locking nuts.

Furthermore, the cutting clearance is controlled to be 0.1-0.2 mm by the adjusting bolt.

Compared with the prior art, the utility model discloses a spiral impeller high efficiency cutting submersible sewage pump has following beneficial effect: 1. the problem that the pump and the pipeline are easy to block when the pump discharges sewage containing fibrous substances is solved;

2. the pump repair rate is reduced, and the unit operation efficiency is improved;

3. the running cost of the pump is reduced, and the service life is prolonged.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a schematic view of the original mounting structure of the impeller;

the pump comprises a pump body 1, a pump base 2, a pump shaft 3, a pump shaft 4, a stator component 5, a rotor component 6, a bearing 7, a mechanical seal 8, a spiral cutting impeller 9, a cutting disc 10, an inner mounting base 11, a cutting gap 12, an adjusting bolt 13, an outer mounting base 14 and a locking nut.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below.

As shown in fig. 1, a spiral impeller high efficiency cutting dive sewage pump, including the pump body 1, pump seat 2 is installed to pump body 1 below, install pump shaft 3 in the pump body 1, be provided with drive arrangement in the pump body 1 top, by drive arrangement drive pump shaft 3, wherein, drive arrangement includes stator part 4 and rotor part 5, and wear to establish in rotor part 5 in the 3 upper ends of pump shaft, the pump shaft passes through bearing 6 and is connected with the connecting seat rotation on the pump body 1, installs mechanical seal 7 on the shaft body of pump shaft 3 and prevents that sewage from getting into drive arrangement.

The pump is characterized in that a pump cavity is arranged in the lower portion of the pump body 1, a spiral cutting impeller 8 is mounted at the lower end of the pump shaft 3 in the pump cavity, cutting blades are machined on the end faces of impeller blades of the spiral cutting impeller 8, wherein the spiral cutting impeller 8 is of a semi-open structure, and specifically, the impeller in the Chinese patent with the publication number of CN106194820A and the name of 'full-lift spiral cutting type non-clogging submersible sewage pump' can be referred to.

Cutting disk 9 is installed to 2 upper ends of pump seat, and wherein, processing has mount pad 10 in the round in 2 upper ends of pump seat, and the fix with screw is passed through on mount pad 9 in cutting disk 9 bottom, spiral cutting impeller 8 when rotating and cutting disk 9 between the surface form cutting clearance 11, owing to adopt spiral impeller structure and take sharp blade design, on the basis of guaranteeing hydraulic performance, have certain cutting ability again concurrently, the cutting disk adopts just formula structural design of tearing open moreover, is convenient for maintain and change.

The external portion of pump seat 2 is provided with adjusting bolt 12, leans on the pump body 1 bottom to adjust cutting clearance 11 size through adjusting bolt 12 top, and wherein, has processed round outer mount pad 13 outside pump seat 2 upper end, and outer mount pad 13 is peripheral to be connected with the pump body 1 bottom through bolt, bullet pad, adjusting bolt 12 symmetric connection is on outer mount pad 13, is connected with lock nut 14 on adjusting bolt 12, and lock nut 14 is used for locking adjusting bolt 12, controls cutting clearance at 0.1 ~ 0.2mm through adjusting bolt 12.

When the pump runs at a high speed, because the clearance between the spiral cutting impeller 8 and the cutting disk 9 is very small, when fibrous materials enter from a pump body suction inlet, the fibrous materials can be easily cut off or chopped, if the running time of the pump is long, after the clearance between the spiral cutting impeller 8 and the cutting disk 9 is enlarged due to abrasion, because the cutting clearance between the spiral cutting impeller 8 and the cutting disk 9 adopts an adjustable structural design, the cutting clearance can be readjusted by screwing the adjusting bolt 12, the discharge function after the fibrous materials are cut is ensured, the performance can meet the requirement, and the efficient running of the pump is ensured.

The present invention is not limited to the above-described embodiments, and those skilled in the art can make modifications or changes without departing from the spirit of the present invention.

Claims

1. The utility model provides a spiral impeller high efficiency cutting dive sewage pump, includes the pump body, and the pump seat is installed to pump body below, install the pump shaft in the pump body, be provided with drive arrangement in the pump body top, by drive arrangement drive pump shaft, its characterized in that: the improved pump is characterized in that a pump cavity is arranged in the lower portion of the pump body, a spiral cutting impeller is mounted at the lower end of the pump shaft in the pump cavity, cutting blades are machined on the end faces of impeller blades of the spiral cutting impeller, a cutting disc is mounted at the upper end of the pump seat, a cutting gap is formed between the spiral cutting impeller and the surface of the cutting disc when the spiral cutting impeller rotates, an adjusting bolt is arranged outside the pump seat, and the adjusting bolt abuts against the bottom of the pump body to adjust the size of the cutting gap.

2. The screw impeller high efficiency cutting submersible sewage pump of claim 1, wherein: a circle of inner mounting seat is machined in the upper end of the pump seat, and the bottom of the cutting disc is fixed on the inner mounting seat through screws.

3. The screw impeller high efficiency cutting submersible sewage pump of claim 1, wherein: the pump comprises a pump body, a pump seat and an adjusting bolt, wherein the upper end of the pump seat is externally processed with a circle of outer mounting seat, the periphery of the outer mounting seat is connected with the bottom of the pump body through the bolt and an elastic pad, the adjusting bolt is symmetrically connected on the outer mounting seat, and the adjusting bolt is connected with a locking nut.

4. A spiral impeller high efficiency cutting submersible sewage pump as claimed in claim 3, wherein: the cutting clearance is controlled to be 0.1-0.2 mm by the adjusting bolt.