CN101433784A

CN101433784A - Non-dissembling filtration device before pump

Info

Publication number: CN101433784A
Application number: CNA2007100481637A
Authority: CN
Inventors: 罗成
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-11-13
Filing date: 2007-11-13
Publication date: 2009-05-20

Abstract

The invention relates to a disassembly-free pump-front filtering device, which comprises a handwheel, a cover, a shell, a sewage storage chamber and a blow-down valve, and is characterized in that the cover is connected with the shell through an eye bolt; an upper shaft is arranged in the center of the cover and the handwheel; a lower shaft is arranged in the center of a filter screen cylinder inside the shell; end parts of the upper shaft and the lower shaft are concavely and convexly connected and can rotate synchronously along with the handwheel; the filter screen cylinder is circular; and one side of a built-in scraper is fixedly connected with the lower shaft through a bearing arm, and the other side of the built-in scraper is connected with the inside of the filter screen cylinder and can rotate along the rotation of the lower shaft. The disassembly-free pump-front filtering device has the advantages that a cover plate adopts the quick-opening eye bolt and the shaft is divided into two parts, namely the upper shaft and the lower shaft, so that the assemble and disassemble are convenient and quick; and a filter screen adopts the structure of a circular screen cylinder, so that the filter capacity is strong, the pressure loss is small and the service life is long. Moreover, the disassembly-free pump-front filtering device can perform online blowdown and is convenient to operate.

Description

Non-dissembling filtration device before pump

Technical field

The invention belongs to traffic protection device technique field, be specifically related to a kind of non-dissembling filtration device before pump that can online blowdown.

Background technology

Under heavy oil water mixed liquid fibrousness impurity multi-state condition, conventional filter filter area little (often less than the bore area), impurity is many, viscosity is big, and screen pack 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, screen pack weak point in service life.Screen pack is cleaned or changes in decontamination, necessary termination of pumping breaks in production, and not only bothersome, labour intensity is big, and delays production.

Summary of the invention

The objective of the invention is: provide a kind of can online blowdown, easy to operate, the non-dissembling filtration device before pump of long service life.

For achieving the above object, the technical scheme of employing is: cover plate adopts the fast-open type eyelet bolt to be connected with housing; Filter screen cylindrical shape, large tracts of land are filtered; Axle is divided into two parts up and down, adopts concavo-convex flexible connection.Specifically, non-dissembling filtration device before pump, comprise handwheel, lid, housing and place the dirt storage room and the blowoff valve of described housing below, it is characterized in that: described lid links to each other by eyelet bolt with described housing, last axle places the center of described lid and described handwheel, lower shaft places the center of the screen tube that is positioned at housing, described upward axle and concavo-convex joining of described lower shaft end, and can rotate synchronously with handwheel.

Described screen tube is circular, and inner cutter one side is fixedlyed connected with lower shaft by supporting arm, and opposite side and screen tube inboard join, and can rotate with lower shaft.

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.

Good effect of the present invention is: cover plate adopts the fast-open type eyelet bolt, and axle is divided into axle and two parts of lower shaft, and installation and removal are convenient and swift; Screen pack adopts the circular net tubular structure, 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 labour intensity, has improved operating efficiency.

Description of drawings

Below in conjunction with the drawings and specific embodiments, the invention will be further described.

Fig. 1 non-dissembling filtration device before pump vertical structure schematic diagram;

Fig. 2 inner core modular construction schematic diagram;

Fig. 3 doctor assemblies structural representation;

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

Fig. 5 non-dissembling filtration device before pump horizontal type structure schematic diagram.

Among the figure, 1-upward axle; 2-handwheel; 3-interior core assembly; 4-dirt storage room; 5-blowoff valve; 6-housing; 7-exocoel; 8-eyelet bolt; 9-lid; 10-doctor assemblies; 11-upper mounted plate; 12-lower shaft; 13-screen tube; 14-support bar; 15-bottom plate; 16-supporting arm; 17-scraper spring; 18-scraper; 19-through hole.

The specific embodiment

Embodiment 1 (vertical structure)

As seen from Figure 1, non-dissembling filtration device before pump, comprise handwheel 2, lid 9, housing 6 and place the dirt storage room 4 and the blowoff valve 5 of described housing 6 belows, it is characterized in that: described lid 9 links to each other by eyelet bolt 8 with described housing 6, last axle 1 places the center of described lid 9 and described handwheel 2, lower shaft 12 places the center of the screen tube 13 that is positioned at housing 6, described upward axle 1 and concavo-convex joining of described lower shaft 12 ends, and can rotate synchronously with handwheel 2.

Described screen tube 13 is circular, inner cutter assembly 10, and scraper 18 1 sides are fixedlyed connected with lower shaft 12 by supporting arm 16, and the opposite side of described scraper 18 and screen tube 13 inboards join, and can rotate with lower shaft 12.

Screen tube 13 described in the core assembly 3 placed between the upper mounted plate 11 and bottom plate 15 by support bar 14 support and connection in Fig. 2 showed.

Fig. 3 shows described supporting arm 16 and is inside and outside sleeve formula 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.Enter the inner chamber of screen tube 13 during use after fluid enters from this device import under pressure through through hole 19, fluid flows into exocoel 7 after filter in screen tube 13 holes, 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), so hand-turning handwheel 2 or starter motor drive central shaft and rotate, scraper 18 will scrape the dirt at screen tube 13 filter opening edges, make device recover operate as normal.

Embodiment 2 (horizontal type structure)

Fig. 5 is a non-dissembling filtration device before pump horizontal type structure schematic diagram.As seen from the figure, lid 9 and housing 6 that the horizontal type structure non-dissembling filtration device before pump comprises handwheel 2 and is connected to a fixed with it, the upward axle 1 of central shaft places the center of described handwheel 2, be equipped with circular filter screen tube 13 between upper mounted plate 11 and the bottom plate 15, lower shaft 12 places the center of described filter screen letter 13, last axle 1 adopts concaveconvex structure to flexibly connect with lower shaft 12, can rotate with handwheel 2 synchronous interactions, in the described screen tube 13, scraper 18 1 sides are fixedlyed connected with lower shaft 12 by supporting arm 16, opposite side and screen tube 13 inboards join, and can rotate with lower shaft 12.Lid 9 is fixedlyed connected with housing 6 by eyelet bolt 8.

During use, fluid enters from inlet port, filters by screen tube 13 filter openings, and the liquid after the filtration flow into exocoel 7 through screen tube 13, flows out from outlet again.Dirt that produces in this process or impurity are blocked the edge that rests on screen tube 13 filter openings.When filtering net cylinder 13 is stopped up by dirt and impurity, filter two ends pressure reduction increases, because scraper 18 is fixedlyed connected with central shaft 12, and can rotate with central shaft (it is concavo-convex chimeric with lower shaft 12 to go up axle 1), so hand-turning handwheel 2 or starter motor drive central shaft and rotate, scraper 18 scrapes the dirt at screen tube 13 filter opening edges and enters dirt storage room 4, as this moment filter two ends pressure reduction reduce, filter can recover operate as normal.Can not reduce as filter two ends differential pressure, illustrate that dirt storage room 4 is full, need only open blowoff valve 5 this moment, just can empty the dirt in the dirt storage room 4 automatically, need not termination of pumping.

The present invention is vertical unit or horizontal type device no matter, when taking out interior core assembly cleaning or maintenance as need, only need the eyelet bolt 8 on the lid 9 is unclamped, raise and cover 9, core assembly 3 in can easily taking out, it is carried out cleaning treatment, can pass to compressed air at air inlet as special obstinate dirt and the dirt sucking-off can be need not the termination of pumping provision for disengagement.

Before this non-dissembling filtration device before pump is installed in pump, be applicable to the removing of impurity in the gas simultaneously.

Claims

1. non-dissembling filtration device before pump, comprise handwheel (2), lid (9), housing (6) and place dirt storage room (4) and blowoff valve (5) below the described housing (6), it is characterized in that: described lid (9) links to each other by eyelet bolt (8) with described housing (6), last axle (1) places the center of described lid (9) and described handwheel (2), lower shaft (12) places the center of housing (6) Inner filter net tube (13), described going up axle (1) and described lower shaft (12) concavo-convex joining of end, and can be with handwheel (2) rotation synchronously.

2. according to the described non-dissembling filtration device before pump of claim 1, it is characterized in that: described screen tube (13) is for circular, inner cutter (18) one sides are fixedlyed connected with lower shaft (12) by supporting arm (16), the opposite side of scraper (18) and screen tube (13) inboard join, and can rotate with lower shaft (12).

3. according to the described non-dissembling filtration device before pump of claim 1, it is characterized in that: described screen tube (13) places between the upper mounted plate (11) and bottom plate (15) by support bar (14) support and connection.

4. according to the described non-dissembling filtration device before pump of claim 2, it is characterized in that: described supporting arm (16) is inside and outside sleeve formula structure, and sleeve is built-in with scraper spring (17).