CN100439875C

CN100439875C - On-line cleaning flowmeter protector and cleaning method therefor

Info

Publication number: CN100439875C
Application number: CNB2006101164606A
Authority: CN
Inventors: 曹国庆; 胡福根; 罗成
Original assignee: SHANGHAI HUQING INSTRUMENT CO Ltd
Current assignee: SHANGHAI HUQING INSTRUMENT CO Ltd
Priority date: 2006-09-25
Filing date: 2006-09-25
Publication date: 2008-12-03
Anticipated expiration: 2026-09-25
Also published as: CN1967172A

Abstract

The online flow meter protection device, the characteristic is the built-in filter protection body components in the shell. The top fixed plate and the bottom fixed plate fixed connects with the shell roof by the fixed pole, and the filter metal mesh plate between the top fixed plate and the bottom fixed plate connects with the center axis, and can rotate with the axis, and the inner hole of the top fixed plate and the bottom fixed plate have at least a muscle. When the measured medium (liquid or gas) passing through the protection device, the impurities dirt in the measured medium has been blocked in the lower cavity side of the filter mesh plate, and when the filter mesh plate rotating with the rotation axis, as the bottom fixed plate fixed immovably, the muscle in the inner-hole of the bottom fixed plate will scrape the impurity dirt of the filter mesh plate to the floor of the lower cavity (dirt storage room), and open the dirt pump valve to keep online dirt ejection. The invention is simple structure and compact design, and can meet the special needs of occasions of the limited flange spacing or the limited installation center height, and its protection device components have good rigidity, big intensity, able to withstand the impact of instantaneous flow rate and pressure without damaged and long life.

Description

Online flowmeter protector and the cleaning method thereof of removing contamination

Technical field

The invention belongs to the flow measurement instrument technical field, relate to a kind of architecture advances of the online flowmeter protector of removing contamination, relate in particular to board-like online flowmeter protector and the online cleaning method thereof of removing contamination of a kind of wire netting.

Background technology

Conventional filter is the screen pack formula, and instantaneous delivery that moment produces during turn on pump and pressure are easy to cause screen pack to destroy in process of production; Screen pack obstruction or damage easily in use, serviceable life is short, and screen pack is cleaned or changes in decontamination, and necessary termination of pumping breaks in production not only takes a lot of trouble, and labour intensity is big, and delays production.Screen pack more can cause flowmeter stuck even scrap as can not get timely replacing, causes the significant wastage of resource.Lamination filtering type flowmeter protector, the lamination complexity, volume is big, limited the application in some limited occasion in space, and dirt storage room is little, blowdown often, labor strength is big.

Summary of the invention

The purpose of this invention is to provide a kind of simple in structure, own vol is small and exquisite, dirt storage room's volume is big, the flowmeter protector and the online cleaning method thereof of can not termination of pumping removing contamination quickly and easily.

For achieving the above object; the technical solution used in the present invention is: the online flowmeter protector of removing contamination; comprise housing and the blowoff valve that places housing bottom; it is characterized in that the filtration protective assembly that described housing is built-in with is divided into upper cavity and lower chamber with the housing inner chamber; described upper cavity communicates with the outlet of protector; described lower chamber is connected with the import of protector; upper mounted plate is fixedlyed connected with the top cover of described housing by fixed bar with bottom plate in the described protective assembly; the filtering metal web plate that is equipped with between described upper mounted plate and the described bottom plate links to each other with the central shaft in the housing, and can rotate with central shaft.Has a muscle in the endoporus of upper mounted plate and bottom plate at least.The filtering metal web plate is equipped with and filters the aperture that the order number is corresponding, be communicated with upper cavity and lower chamber.The central shaft that described housing is built-in with is connected with the handwheel that places the housing top, interlock rotation mutually.

The described online flowmeter protector of removing contamination; online method of removing contamination is that measured medium (liquid or gas) enters lower chamber from import; metal otter board filters and enters upper cavity after filtration; flow out from the protector outlet at last; impurity dirt in the measured medium is blocked in lower chamber one side of filtering metal web plate; when the filtration metal otter board rotates with central shaft; bottom plate is fixedlyed connected motionless with fixed bar; muscle in the bottom plate endoporus will be detained; the sticking impurity dirt that amasss on the filtering metal web plate is scraped and is issued to online purpose of removing contamination; wash down the impurity dirt and be deposited on the bottom (claiming dirt storage room again) of lower chamber, opening blowoff valve can the online blowdown of not termination of pumping.

The invention has the beneficial effects as follows: flowmeter protector simple in structure, own vol is small and exquisite, can satisfy the special requirement in flange spacing, the limited occasion of mounting center height; Filter the dirt of protective assembly in can the online removing protector of not termination of pumping, simple to operate; The protective good rigidity, intensity is big, can stand the impact of instantaneous delivery and pressure, and is not fragile, need not keep in repair, and serviceable life is longer more than 5 times than conventional filter; Dirt storage room is big, has reduced the blowdown number of times, has alleviated working strength of workers; High temperature resistant, high pressure resistant, be particularly suitable for the filtration of high viscosity media such as oil field.

Description of drawings

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

Fig. 1 structural representation of the present invention;

The local structure for amplifying synoptic diagram of Fig. 2 protective assembly;

Protective A is to view among Fig. 3 Fig. 2.

Among the figure, the 1-handwheel; The 2-housing; The 3-upper cavity; The 4-import; The 5-lower chamber; The 6-blowoff valve; 7-protective assembly; The 8-outlet; The 9-fixed bar; The 10-central shaft; The 11-upper mounted plate; The 12-metal otter board; The 13-bottom plate; The 14-muscle.

Embodiment

The online flowmeter protector of removing contamination, comprise housing 2 and the blowoff valve 6 that places housing 2 bottoms, it is characterized in that the filtration protective assembly 7 that described housing 2 is built-in with, the housing inner chamber is divided into upper cavity 3 and lower chamber 5, described upper cavity 3 communicates with the outlet 8 of protector, and described lower chamber 5 is connected with the import 4 of protector; Filter upper mounted plate 11 and bottom plate 13 in the protective assembly 7, fixedly connected with the top cover of housing 2 by fixed bar 9, the filtering metal web plate 12 that is equipped with between described upper mounted plate 11 and the bottom plate 13 links to each other with central shaft 10, and can rotate with central shaft 10; Has a muscle 14 in the endoporus of described upper mounted plate 11 and bottom plate 13 at least; Place the central shaft 10 in the described housing 2 to be connected with the handwheel 1 that places housing 2 tops, and interlock rotation mutually.Filtering metal web plate 12 is equipped with and filters the aperture that the order number is corresponding, be communicated with upper cavity 3 and lower chamber 5.

The online method of removing contamination of the described online flowmeter protector of removing contamination is: measured medium (liquid or gas) enters lower chamber 5 from import 4; metal otter board 12 filters and enters upper cavity 3 after filtration; flow out from protector outlet 8 at last; impurity dirt in the measured medium is blocked in lower chamber 5 one sides of filtering metal web plate 12; when filtering holes was stopped up by the impurity dirt, protector two ends differential pressure increased.Because when filtering metal web plate 12 rotates with central shaft 10; and bottom plate 13 is fixedlyed connected motionless with fixed bar 10; but, starter motor rotates or the hand-turning handwheel so driving central shaft; muscle 14 in bottom plate 13 endoporus will be detained, the sticking impurity dirt that amasss on filtering metal web plate 12 scrapes; remove the impurity dirt and be deposited on the bottom (dirt storage room) 5 of lower chamber; protector two ends differential pressure decreases, and flowmeter can recover operate as normal.Drive central shaft as starter motor and rotate or the scrubbing of hand-turning handwheel, protector two ends differential pressure can not reduce, and illustrates that lower chamber dirt storage room 5 is full, and needn't termination of pumping dismantle protector this moment, need only open blowoff valve 6, just can reach online purpose of removing contamination.

Claims

1; the online flowmeter protector of removing contamination; comprise housing (2) and place the blowoff valve (6) of housing (2) bottom; it is characterized in that the filtration protective assembly (7) that described housing (2) is built-in with is divided into upper cavity (3) and lower chamber (5) with the housing inner chamber; described upper cavity (3) communicates with the outlet (8) of protector; described lower chamber (5) communicates with the import (4) of protector; upper mounted plate (11) is fixedlyed connected with the top cover of described housing (2) by fixed bar (9) with bottom plate (13) in the described protective assembly (7); the filtering metal web plate (12) that is equipped with between described upper mounted plate (11) and the described bottom plate (13) links to each other with central shaft (10); and can rotate with central shaft (10), have a muscle (14) at least in the endoporus of described upper mounted plate (11) and bottom plate (13).

2,, it is characterized in that described filtering metal web plate (12) is equipped with and filters the aperture that the order number is corresponding, be communicated with upper cavity (3) and lower chamber (5) according to the described online flowmeter protector of removing contamination of claim 1.

3,, it is characterized in that the central shaft (10) in the described housing (2) is connected interlock rotation mutually with the handwheel (1) that places housing (2) top according to the described online flowmeter protector of removing contamination of claim 1.

4; the online method of removing contamination of the described online flowmeter protector of removing contamination of claim 1 is: measured medium liquid or gas; enter lower chamber (5) from import (4); metal otter board (12) filters and enters upper cavity (3) after filtration; flow out from protector outlet (8) at last; impurity dirt in the measured medium is blocked in lower chamber (5) one sides of filtering metal web plate (12); when filtration metal otter board (12) rotates with central shaft (10); bottom plate (13) is fixedlyed connected motionless with fixed bar (9); muscle (14) in bottom plate (13) endoporus will be detained; the sticking impurity dirt that amasss on filtering metal web plate (12) scrapes the bottom that is deposited on lower chamber (5), and opening blowoff valve (6) can the online blowdown of not termination of pumping.