CN205423177U

CN205423177U - There is not sealed vertical self priming pump

Info

Publication number: CN205423177U
Application number: CN201620145481.XU
Authority: CN
Inventors: 蒋元成; 陈启国
Original assignee: Zhenjiang Wanlin Pump Co Ltd
Current assignee: Zhenjiang Wanlin Pump Co Ltd
Priority date: 2016-02-27
Filing date: 2016-02-27
Publication date: 2016-08-03
Anticipated expiration: 2026-02-27

Abstract

The utility model relates to a there is not sealed vertical self priming pump, including the pump body, pivot, auxiliary impeller and impeller in the pump body and between the pivot forming the pumping chamber between auxiliary impeller and impeller, still including annular separation sleeve subassembly, it encircles the pivot setting, be located between auxiliary impeller and impeller, will the high nip of the inboard low -pressure area and the outside is cut apart into to the pumping chamber. The utility model discloses increasing annular separation sleeve subassembly, can reducing auxiliary impeller's outer diameter relatively, reduce the consumption, improve self priming pump efficiency, and can block that the medium shuts down through the betweencenters crack phenomenon that leaks, sealed effect is better.

Description

Without sealing vertical self-sucking pump

Technical field

This utility model relates to self priming pump, concrete open a kind of without sealing vertical self-sucking pump.

Background technology

Existing without sealing vertical self-sucking pump (such as Fig. 1), including the pump housing, rotating shaft, the accessory impeller sealed and impeller, pumping chamber is formed in the pump housing and between rotating shaft, between accessory impeller and impeller, the pressure produced because of accessory impeller is greater than impeller pressure, then its external diameter wants big relative to impeller, the power that the big then accessory impeller of external diameter consumes is high, and the power of pump total consumption is big and efficiency is low；And when pump is shut down, internal liquid can go out the leakage of shaft clearance (A in figure) place, and pumped (conveying) medium can be caused to pollute the problems such as environment.

Utility model content

Goal of the invention of the present utility model is: in order to solve, problem above offer one is low in energy consumption, operational paradigm is high, sealing effectiveness preferably nothing seals vertical self-sucking pump.

This utility model be employed technical scheme comprise that such:

Without sealing vertical self-sucking pump, including the pump housing, rotating shaft, accessory impeller and impeller, pumping chamber is formed in the described pump housing and between rotating shaft, between described accessory impeller and impeller, also include annular isolation grip assembly, it arranges around described rotating shaft, is positioned between described accessory impeller and impeller, and described pumping chamber is divided into inner side low-pressure area and outside high pressure district.

Further, described accessory impeller reduced diameter 1/4th.

In sum, owing to using technique scheme, the beneficial effects of the utility model are:

Non-sealing self-sucking pump increases separation sleeve assembly, and inside is low-pressure area, then accessory impeller bears pressure and is less than impeller, and its size can be relatively reduced, and corresponding power consumption reduces, and improves self priming pump efficiency further；And sealing effectiveness is more, effective block media is shut down and is leaked phenomenon by going out shaft clearance.

Accompanying drawing explanation

Fig. 1 is prior art construction figure；

Fig. 2 is this utility model structural representation.

Labelling in figure: 1, the pump housing；2, rotating shaft；3, accessory impeller；4, impeller；5, low pressure isolation fluid reservoir；6, separation sleeve assembly.

Detailed description of the invention

Below in conjunction with the accompanying drawings he the utility model is described in further detail.

As shown in Figure 2, without sealing vertical self-sucking pump, including the pump housing 1, rotating shaft 2, accessory impeller 3 and impeller 4, pumping chamber 5 is formed in the described pump housing 1 and between rotating shaft 2, between described accessory impeller 3 and impeller 4, ensure that original structure is constant, impeller is positioned at the foot of water-pumping chamber 5, and sealing pair impeller 3 is positioned at the topmost of pumping chamber 5；Also including annular isolation grip assembly 6, it arranges around described rotating shaft 2, is positioned between described accessory impeller 3 and impeller 4, and described pumping chamber 5 is divided into inner side low-pressure area and outside high pressure district.

Described accessory impeller 3 reduced diameter 1/4th because belonging to low-pressure area inside separation sleeve assembly 6, the pressure that accessory impeller bears can relative reduction, then can by reduce accessory impeller 3 size reduce power consumption.

This structure need not additionally increase cast member, only need to increase separation sleeve assembly 6 between accessory impeller and impeller, make to be formed inside separation sleeve assembly low-pressure area, in this case by suitably reducing accessory impeller external diameter, low consumed power can drop, then pump total consumption power reduction, improves pump whole efficiency accordingly；And separation sleeve assembly 6 can shut down and leak phenomenon by going out shaft clearance (in figure A at) by block media, sealing effectiveness is more preferable, it is ensured that pump operation work more stable reliably.

The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all any amendment, equivalent and improvement etc. made within spirit of the present utility model and principle, within should be included in protection domain of the present utility model.

Claims

1. without sealing vertical self-sucking pump, including the pump housing, rotating shaft, accessory impeller and impeller, pumping chamber is formed in the described pump housing and between rotating shaft, between described accessory impeller and impeller, it is characterized in that: also include annular isolation grip assembly, it arranges around described rotating shaft, is positioned between described accessory impeller and impeller, and described pumping chamber is divided into inner side low-pressure area and outside high pressure district.

It is the most according to claim 1 without sealing vertical self-sucking pump, it is characterised in that: described accessory impeller reduced diameter 1/4th.