CN202700219U

CN202700219U - Online dirt cleaning filter capable of filtering rag strip impurities in crude oil

Info

Publication number: CN202700219U
Application number: CN 201220402662
Authority: CN
Inventors: 罗成
Original assignee: Individual
Current assignee: SHANGHAI HUQING INSTRUMENT CO Ltd
Priority date: 2012-08-15
Filing date: 2012-08-15
Publication date: 2013-01-30
Anticipated expiration: 2022-08-15

Abstract

The utility model relates to an online dirt cleaning filter capable of filtering rag strip impurities in crude oil, belonging to the technical field of front protective devices of flow meter pumps. The online dirt cleaning filter is characterized in that one side of the cylindrical wall of a filtering unit cavity is connected and communicated with an inlet of a main flow pipeline via a through hole, the other side is connected and communicated with an outlet of the main flow pipeline via a filter net, and air inlet holes are arranged on an upper flange and a quick-opening cover plate; a cleaning piston plate, the surface of the piston plate is provided with multiple filter holes, and the cleaning piston plate is fixedly connected with the lower end of a connecting rod arranged in a guide sleeve pipe and moves up and down along with the ascending and descending of the connecting rod. The online dirt cleaning filter has the advantages of simple structure and convenience for operation. The up-and-down operation of a handle can drive the cleaning piston plat to make up-and-down reciprocating movement to scrape adhesions on the filter net; and compressed air is introduced into an air inlet to blow off dirt or impurities on the cleaning piston plate, the dirt or impurities are discharged from a dirt drain valve of a dirt storage room, the whole process can be completed in an online way without disassembly, the labor intensity is low, and the working efficiency is high.

Description

But the online cleaning filter of rag bar impurity in a kind of filtering crude oil

Technical field

The utility model belongs to protective device technical field before the flowmeter pump, relates to a kind ofly at Crude Oil Transportation flow in process meter pump front filter, relates in particular to impurity such as containing gloves, rag bar in a kind of crude oil, the online cleaning filter that can remove contamination online and exempt to dismantle.

Background technology

Before filter generally is installed on the flow measurement pump, make the crude oil that enters pump by filter inner chamber screen pack the time, the impurity that may stop up or damage pump thoroughly filters out.

In the high viscosity oil course of conveying, sometimes because the preceding working procedure careless manipulation, the fiber-like impurity such as gloves, rag bar might be brought in the measured medium, and the impurity such as rag bar that conventional filter can't filtering, very easily cause filter core to stop up, filter can't be worked.This moment must the termination of pumping breaks in production, and filter integral body is taken apart, and artificial, manual methods is removed wherein the impurity of rag bar etc. that can't filtering, not only wastes time and energy, and delays production.

Summary of the invention

The purpose of this utility model is: provide a kind of easy to operate, can to conventional filter can't filtering the impurity such as the rag filter of removing contamination online and filtering.

For achieving the above object, the technical scheme that adopts is: but the online cleaning filter of rag bar impurity in a kind of filtering crude oil, comprise filter element cavity, the main flow pipeline that is connected with described filter element cavity, and the dirt storage room and the blowoff valve that place described filter element cavity below, it is characterized in that: cylindrical wall one side of described filter element cavity is connected with the import of main flow pipeline by through hole and communicates, and opposite side is connected with the main flow pipe way outlet by filter screen and communicates; The upper end of described filter element cavity is fastenedly connected with upper flange and quick-actuating closure plate, is equipped with air admission hole on described upper flange and the quick-actuating closure plate, and guide thimble places the center of described quick-actuating closure plate, and spacing briquetting is fixedly connected with the upper end of described guide thimble; Also be equipped with the cleaning piston plate in the described filter element cavity, the surface of described cleaning piston plate is equipped with a plurality of filter openings, the connecting rod lower end interior with placing guide thimble, the center of described cleaning piston plate is fixedly connected with, and can move up and down with the lifting of described connecting rod; The top of the screen pack of described filter element cavity communicates with main flow pipe way outlet connecting line by shunt valve.

One end of the upper end of described connecting rod and handle is flexibly connected, and the middle-end of described handle is take the upper end of support post as fulcrum, and the other end is lever operated end, links up with filter body upper limit locking rope by the limiting lock tight rope to be connected and fixed.

Good effect of the present utility model is: provide a kind of and can exempt from online to dismantle the filter that filters, removes contamination, when containing the impurity that the conventional filter such as rag bar can't filtering in the measured medium, can be by the up and down operation of operating grip operating side, realize the reciprocating motion of connecting rod, and then drive the cleaning piston plate and do slowly and pump, strike off attachment on the screen pack; Passing into compressed air from air inlet can blow off dirt or impurity on the cleaning piston plate filter opening, enter dirt storage room, discharge from blowoff valve, whole filter process all can be online, exempt from dismounting finishes, need not termination of pumping and do not affect production, reduced labour intensity, improved operating efficiency, simple in structure, easy to operate, long service life.

Description of drawings

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

Fig. 1 cleaning filter contour structures schematic diagram:

The upper position limiting structure schematic diagram of Fig. 2 cleaning piston plate (being positioned at the screen pack top);

The next position limiting structure schematic diagram of Fig. 3 cleaning piston plate (being positioned at the screen pack below);

Fig. 4 cleaning piston plate component structure schematic diagram.

Among the figure, the 1-connecting rod; The 2-support post; The 3-handle; 4-limiting lock tight rope; 5-limiting lock tight rope hook; The 6-shunt valve; 7,7 '-Pressure gauge; 8-main flow pipeline; The 9-screen pack; 10-dirt storage room; 11-blowoff valve (flat gate valve); 12-cleaning piston plate; 13-filter element cavity; The 14-upper flange; 15-quick-actuating closure plate; The 16-air inlet; The spacing briquetting of 17-; The 18-guide thimble.

The specific embodiment

But the online cleaning filter of rag bar impurity in a kind of filtering crude oil, comprise filter element cavity 13, the main flow pipeline 8 that is connected with described filter element cavity 13, and the dirt storage room 10 and the blowoff valve 11 that place described filter element cavity 13 belows, it is characterized in that: cylindrical wall one side of described filter element cavity 13 is connected with the import of main flow pipeline 8 by through hole and communicates, and opposite side is connected with the outlet of main flow pipeline 8 by filter screen 9 and communicates; The upper end of described filter element cavity 13 is fastenedly connected with upper flange 14 and quick-actuating closure plate 15, and guide thimble 18 places the center of described quick-actuating closure plate 15, and spacing briquetting 17 is fixedly connected with the upper end of described guide thimble 18; Also be equipped with cleaning piston plate 12 in the described filter element cavity 13, the surface of described cleaning piston plate 12 is equipped with a plurality of filter openings, the center of described cleaning piston plate 12 is fixedly connected with the lower end of connecting rod 1 in placing guide thimble 18, and can move up and down with the lifting of described connecting rod 1; The top of the screen pack 9 of described filter element cavity 13 communicates with the outlet connecting pipe road of main flow pipeline 8 by shunt valve 6.

The upper end of described connecting rod 1 is connected with an end of handle 3, and the middle-end of described handle 3 is flexibly connected take the upper end of support post 2 as fulcrum, and the other end is the operating side of handle 3.Moving up and down of operating side by operating grip 3, realize the reciprocating motion of connecting rod 1, and then drive cleaning piston plate 12 and do slowly and pump, the extreme position that cleaning piston plate 12 pumps is respectively the up and down both sides of the screen pack 9 that communicates with 8 outlets of main flow pipeline: handle 3 operating sides press down, be connected and fixed by limiting lock tight rope 4 and limiting lock tight rope hook 5, realize the upper limit of cleaning piston plate 12 spacing; Unclamp limiting lock tight rope 4, handle is carried on 3 operating sides, realizes that by spacing briquetting 17 lower limit of cleaning piston plate 12 is spacing.

During use, measured medium is entered by the import of main flow pipeline 8 under pressure, flow into filter element cavity 13, screen pack 9 filter conventional filter such as containing the rag bar can't the impurity of filtering after, then flow out through the outlet of main flow pipeline 8, to be attached to attachments such as rag bar on the screen pack 9 when cleaning piston plate 12 pumps and draw together and remove, and make it enter dirt storage room 10 with gravitational settling, this process has been finished on-line filtration.The surface of described cleaning piston plate 12 is equipped with a plurality of filter openings, above the upper limit position of cleaning piston plate 12, the top that is described screen pack 9 arranges shunt valve 6, its objective is and guarantee under the blocked extreme operating condition of the screen pack 9 that communicates with main flow pipeline 8 outlet, can guarantee that filter works all the time, normal circulation is arranged in the main flow pipeline.

After measured medium is through filter element cavity 13, the dirt that produces or impurity (such as rag etc.) are blocked the edge of screen pack 9 mesh that rest on filter element cavity 13, when being stopped up by dirt and impurity such as screen pack 9 mesh, then the filter pressure reduction of importing and exporting two ends increases (Pressure gauge 7 and 7 ' the two pressure difference), need allow this moment limiting lock tight rope 4 and limiting lock tight rope hook 5 break away from, on handle 3 operating sides of raising one's hand, drive down motion of cleaning piston plate 12 by connecting rod 1, dirt and impurity on screen pack 9 mesh of filter element cavity 13 can be scraped, make filter recover normal operation (pressure difference at filter two ends reduces).The dirt that is scraped and impurity fall in the dirt storage room 10 under Action of Gravity Field.Stop up such as special obstinate dirt or the impurity a plurality of filter openings with the surface of cleaning piston plate 12, then can pass into the compressed air sedimentation of dirt or impurity can being blown off at air inlet 16, fall in the dirt storage room 10.Can not reduce such as filter two ends pressure reduction, show that then dirt storage room 10 is full, need open blowdown flat gate valve 11 this moment, automatically empty dirt and impurity in the dirt storage room 10, after cleaning piston plate 12 arrival lower positions are finished and removed contamination, need press down the operating side of handle 3, cleaning piston plate 12 is reset to upper limit position under the drive of connecting rod 1, by limiting lock tight rope 4 and limiting lock tight rope hook 5, lock spacing.Whole filtration, blowdown, the process of removing contamination all can be finished online, need not termination of pumping, and filter effect is remarkable, and it is very convenient to operate.

Claims

1. but the online cleaning filter of rag bar impurity in the filtering crude oil, comprise filter element cavity, the main flow pipeline that is connected with described filter element cavity, and the dirt storage room and the blowoff valve that place described filter element cavity below, it is characterized in that: cylindrical wall one side of described filter element cavity is connected with the import of main flow pipeline by through hole and communicates, and opposite side is connected with the main flow pipe way outlet by filter screen and communicates; The upper end of described filter element cavity is fastenedly connected with upper flange and quick-actuating closure plate, is equipped with air admission hole on described upper flange and the quick-actuating closure plate, and guide thimble places the center of described quick-actuating closure plate, and spacing briquetting is fixedly connected with the upper end of described guide thimble; Also be equipped with the cleaning piston plate in the described filter element cavity, the surface of described cleaning piston plate is equipped with a plurality of filter openings, the connecting rod lower end interior with placing guide thimble, the center of described cleaning piston plate is fixedly connected with, and can move up and down with the lifting of described connecting rod; The top of the screen pack of described filter element cavity communicates with main flow pipe way outlet connecting line by shunt valve.

2. but the online cleaning filter of rag bar impurity in described a kind of filtering crude oil according to claim 1, it is characterized in that: an end of the upper end of described connecting rod and handle is flexibly connected, the middle-end of described handle is take the upper end of support post as fulcrum, the other end is lever operated end, is connected and fixed by limiting lock tight rope and filter body upper limit locking rope hook.