CN2753438Y

CN2753438Y - Backflush visual filter

Info

Publication number: CN2753438Y
Application number: CN 200420073577
Authority: CN
Inventors: 夏显庄
Original assignee: WENZHOU CITY DONGHAI PETROLEUM MACHINERY FACTORY
Current assignee: WENZHOU CITY DONGHAI PETROLEUM MACHINERY FACTORY
Priority date: 2004-07-13
Filing date: 2004-07-13
Publication date: 2006-01-25
Anticipated expiration: 2014-07-13

Abstract

The utility model relates to a horizontal basket type filter, particularly to a visual backwashing filter for process pipes in the petrochemical industry. The utility model is characterized in that a backwashing liquid (water) pipe is led into a filter cartridge, and a plurality of fully conical nozzles are arranged on the pipe. The purpose is to design a visual backwashing filter having the advantages of convenient cleaning and fast speed. Compared with the prior art, the utility model has the advantages of reasonable and compact structure, visible cleaning effect and convenience. The horizontal basket type filter solves onerous work of dismounting and washing and ensures the regular operation of a pump.

Description

The visual filter of backwash

The utility model relates to the dress basket filter that crouches, particularly a kind of visual filter of petrochemical process pipeline backwash that is used for.

At present, be used for the dress basket filter for sleeping in of oil, chemical industry, chemical fibre device, it mainly is made of filter cylinder, filter basket and filter cylinder lid.When filtering tar, need 3 cleanings every day, the each cleaning needs 4 workmans to open blank flange, unclamps fixed screw, it is dirty to pull out filter basket, and the preparation organic solvent is used high steam, and water cleans, sometimes need to change pad, reinstall, disassembly, cleaning work is heavy.Each cleaning process also needs 2 hours, and palpus stopped 6 hours in one day, and production run efficient is low.

The purpose of this utility model is the visual filter of design a kind of cleaning backwash easily and fast.

In order to achieve the above object, the utility model adopts following technical solution: the visual filter of a kind of backwash, comprise that filter is simplified, filter basket and filter cylinder lid, it is characterized in that in filter cylinder, introducing counter-flushing liquid (water) pipe, and some full tapered nozzles be set on pipe.Along with increasing of the aggregation of holding back on the strainer screen, when filter need clean.The artificial material inlet valve that cuts off is opened counter-flushing liquid inlet (water) valve and atmospheric valve, promptly the filtration stratum reticulare is recoiled and sends cleaning forth, is backwashed dirt along with counter-flushing liquid is discharged from below blowdown valve port, cleans easily and fast.

The utility model is described in further detail below in conjunction with drawings and Examples.

Fig. 1 is the structure chart of present embodiment.

Fig. 2 is that Fig. 1 is along the A-A profile.

As shown in Figure 1, present embodiment comprises filter simplified (1), filter basket (11) and filter cylinder lid (4), the filtration silk screen (6) of filter basket (11) wall liner outside filter frame by filter frame and lining constitutes, in filter cylinder, from the material outlet pipe, introduce counter-flushing liquid (water) pipe (3), some full tapered nozzles (12) are set on the pipe, and (sending angle forth is 120 °, under the pressure of 0.3Mpa, every flow is 40L/min).As shown in Figure 2, per four full tapered nozzles constitute one group, and are cross and are arranged on washing lotion (water) pipe, and washing lotion (water) pipe top also is provided with completely tapered nozzle (9).Two visor windows (10) and an atmospheric valve (5) are set up in the top of filter cylinder, and the below has a blowdown valve port (2), and set up Pressure gauge (7) and differential pressure controller (8) on the turnover pipe.

After filter puts into operation, along with increasing of the aggregation of holding back on the filter screen, increase gradually into and out of the pressure reduction between the material house steward, when pressure reduction reached certain certain value, the differential pressure controller of filter sent alarm signal.At this moment, manually cut off the material inlet valve, open counter-flushing liquid inlet (water) valve and atmospheric valve, promptly the filtration stratum reticulare is recoiled and send cleaning forth.Be backwashed dirt along with counter-flushing liquid is discharged from below blowdown valve port, the recoil process can be observed the flushing degree from the left and right sides, top visor window at any time.After cleaning procedure was finished, pressure reduction returned to normal operating state again.

In sum, the utility model compared with prior art has the following advantages:

1, compactness rational in infrastructure;

2, clean thoroughly fast, both solved heavy dismounting and washed work, can guarantee again Pump runs well;

3, developing result is visual, and observes conveniently.

Claims

1, the visual filter of a kind of backwash, comprise filter cylinder (1), filter basket (11) and filter cylinder lid (4), it is characterized in that in filter cylinder, introducing counter-flushing liquid (water) pipe (3), some full tapered nozzles (12) are set on the pipe, the filter cylinder top is provided with atmospheric valve (5), and the below has a blowdown valve port (2).

2, the visual filter of backwash according to claim 1 is characterized in that being provided with two visor windows (10) above filter cylinder.

3, the visual filter of backwash according to claim 2 is characterized in that per four full tapered nozzles constitute one group, and is cross and is arranged on washing lotion (water) pipe, and washing lotion (water) pipe top also is provided with completely tapered nozzle (9).