CN201696288U

CN201696288U - Online disassembly-free pump prefilter

Info

Publication number: CN201696288U
Application number: CN2010202387764U
Authority: CN
Inventors: 罗成
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-06-25
Filing date: 2010-06-25
Publication date: 2011-01-05
Anticipated expiration: 2020-06-25

Abstract

The utility model relates to a disassembly-free pump prefilter being capable of discharge sewage on line, which belongs to the technical field of flow protection devices and is characterized in that an upper shaft is arranged in the centers of a cover and a hand wheel; a lower shaft is arranged in the center of a filter screen drum; the ends of the upper shaft and the lower shaft are concavely and convexly jogged and connected and can synchronously rotate along the hand wheel; the filter screen is in a truncated cone shape; a filter screen hole is a tapered hole the inside of which is small and the outside of which is big; one side of the built-in scraper of the filter screen drum is fixedly connected with the lower shaft through a supporting arm, and the other side thereof is connected with the inner side surface of the filter screen drum; and a sewage storage chamber and a blowoff valve are arranged below the inner cavity of a shell. The utility model has the advantages that due to the fact that a quick open type eyelet bolt is adopted by a cover plate, the prefilter is convenient and fast to install and detach; the filter screen is a truncated cone-shaped screen drum structure the upper part of which is small and the lower part of which is big and the filter screen hole is the tapered hole the inside of which is small and the outside of which is big, so a shearing function on the residual sewage of large particles is additionally set, and the prefilter has strong filter capacity, small pressure loss and long service life. The prefilter can discharge the sewage on line without stopping a pump, does not influence the production, is extremely convenient to operate, reduces the labor strength and improves the working efficiency.

Description

Onlinely exempt to dismantle the pump front filter

Technical field

The utility model belongs to traffic protection device technique field, is applicable to oil-water mixture, be specifically related to a kind of can online blowdown exempt to dismantle the pump front filter.

Background technique

Before filter generally is installed on pump, make the oil-water mixture that enters pump, by filter inner chamber filter screen the time, the impurity that may stop up or damage pump thoroughly filters out.Under heavy oil water mixed liquid fibrousness impurity multi-operating mode condition, conventional filter filter area little (often less than the bore area), impurity is many, viscosity is big, and filter screen very easily stops up.After filter screen stops up, must integral body take apart, with hand tear, means such as baked wheaten cake remove dirt, very inconvenience is cleaned in blowdown, filter screen weak point in working life.Decontamination is cleaned or when changing filter screen, must the termination of pumping breaks in production, and not only bothersome, labor intensity is big, and delay production.

The model utility content

The purpose of this utility model is: provide a kind of can online blowdown, easy to operate, long service life online exempts to dismantle the pump front filter.

For achieving the above object, the technological scheme that adopts is: onlinely exempt to dismantle the pump front filter, comprise handwheel, lid, housing, with the screen tube that places described housing inner chamber, it is characterized in that: go up the center that axle places described lid and handwheel, lower shaft places the center of described screen tube, described upward axle and concavo-convex chimeric connection of described lower shaft end, and can rotate synchronously with described handwheel; Described screen tube is a frustoconic shape, and inner cutter one side is fixedlyed connected with lower shaft by supporting arm, and the opposite side of scraper and screen tube Inner side join, and can rotate with lower shaft; Described housing inner chamber below is equipped with dirt storage room and blowdown valve.

Described screen tube is presented little big frustoconic shape structure down, and opening of sieve is inner small and outside big taper.

Described screen tube places between the upper mounted plate and bottom plate that is connected by they sup-port.

Described supporting arm is an inside and outside sleeve formula structure, and sleeve is built-in with the scraper spring.

The utility model good effect is: cover plate adopts the quick open type swing bolt, and axle is divided into axle and two parts of lower shaft, and installation and removal are convenient and swift; Filter screen adopts frustoconic shape net tubular structure, and opening of sieve is inner small and outside big cone shape hole, has increased the shearing function to the big residual dirt of particle, and filter capacity is strong, the pressure loss is little, long service life.Can online blowdown, not termination of pumping does not influence production, and it is very convenient to operate, and has reduced labor intensity, has improved working efficiency.

Description of drawings

Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.

Fig. 1 is online to exempt to dismantle pump front filter structural representation;

Fig. 2 inner core modular construction schematic representation;

Fig. 3 doctor assemblies structural representation;

Core assembly A is to structural representation in Fig. 4 Fig. 2.

Among the figure, the last axle of 1-; The 2-handwheel; Core assembly in the 3-; 4-dirt storage room; The 5-blowdown valve; The 6-housing; The 7-exocoel; The 8-swing bolt; The 9-lid; The 10-doctor assemblies; The 11-upper mounted plate; The 12-lower shaft; The 13-screen tube; The 14-strut; The 15-bottom plate; The 16-supporting arm; 17-scraper spring; 18-automatic control scraper; The 19-through hole.

Embodiment

Fig. 1 is the online pump front filter structural representation of exempting to dismantle, as seen from the figure, onlinely exempt to dismantle the pump front filter, comprise handwheel 2, lid 9, housing 6, screen tube 13 with placing described housing 6 inner chambers is characterized in that: go up the center that axle 1 places described lid 9 and described handwheel 2, lower shaft 12 places the center of screen tube 13, described upward axle 1 and concavo-convex chimeric connection of described lower shaft 12 ends, and can rotate synchronously with handwheel 2; Described screen tube 13 is a frustoconic shape, and inner cutter 18 1 sides are fixedlyed connected with lower shaft 12 by supporting arm 16, and the Inner side of the opposite side of scraper 18 and screen tube 13 joins, and can rotate with lower shaft 12; Described housing 6 inner chambers below is equipped with dirt storage room 4 and blowdown valve 5.

Described screen tube 13 is presented little big frustoconic shape structure down, and opening of sieve is inner small and outside big taper.

Interior core assembly 3 structures are shown in Fig. 2, and described screen tube 13 places between the upper mounted plate 11 and bottom plate 15 by strut 14 support and connection.

Doctor assemblies 10 structural representations are illustrated in Fig. 3, show described supporting arm 16 and are inside and outside sleeve formula linkage structure, and sleeve is built-in with scraper spring 17.

Fig. 4 is that the A of core assembly in Fig. 2 is to view.During use, enter the inner chamber of screen tube 13 under pressure through through hole 19 after fluid enters from this device import, fluid flows into exocoel 7 after screen tube 13 opening of sieves filter, flow out from outlet then.In this process, the impurity of fluid and foreign matter will be blocked in edge, screen tube 13 hole.Because doctor assemblies 10 is fixedlyed connected with central shaft 12, and rotate with central shaft (go up axle 1, lower shaft 12), described screen tube 13 is presented little big frustoconic shape structure down, opening of sieve is inner small and outside big cone shape hole, so when hand-turning handwheel 2 or the rotation of starting electrical machinery drive central shaft, help scraper 18 dirt at screen tube 13 filter opening edges is scraped, dirt enters dirt storage room 4 through through hole 19 and gathers, and waits for and discharging.The long-pending some that gathers of dirt is opened blowdown valve 5 and is discharged, and whole process is all online to be finished, and need not termination of pumping, does not influence production.Lid 9 adopts quick open type swing bolt 8 to be connected with housing 6, and axle is by last axle 1, concavo-convex chimeric the connecting to form of lower shaft 12 two-part, and installation and removal are convenient, fast.

Claims

1. onlinely exempt to dismantle the pump front filter, comprise handwheel (2), lid (9), housing (6), place the screen tube (13) of described housing (6) inner chamber, it is characterized in that: go up the center that axle (1) places described lid (9) and described handwheel (2), lower shaft (12) places the center of screen tube (13), described axle (1) and concavo-convex chimeric connection of described lower shaft (12) end of going up, and can be with described handwheel (2) rotation synchronously; Described screen tube (13) is a frustoconic shape; Inner cutter (18) one sides are fixedlyed connected with lower shaft (12) by supporting arm (16), and the opposite side of scraper (18) and screen tube (13) Inner side join, and can rotate with lower shaft (12); Described housing (6) inner chamber below is equipped with dirt storage room (4) and blowdown valve (5).

2. according to the described online pump front filter of exempting to dismantle of claim 1, it is characterized in that: described screen tube (13) is presented little big frustoconic shape structure down, and opening of sieve is inner small and outside big taper.

3. according to the described online pump front filter of exempting to dismantle of claim 1, it is characterized in that: described screen tube (13) places between the upper mounted plate (11) and bottom plate (15) by strut (14) support and connection.

4. according to the described online pump front filter of exempting to dismantle of claim 1, it is characterized in that: described supporting arm (16) is inside and outside sleeve formula linkage structure, and sleeve is built-in with scraper spring (17).